RF 24-240mm F4-6.3 IS USM as sharp as L-lens?

I was just talking up my 24-85 in another thread. Great little lens. I wish the 24-105 STM was a remake of the 24-85 instead.
It seams hard to find for me. At least hard to find at a low price. It's easily 200 euro, for an old and used lens that needs to be stopped down and has no IS.
Oh that's too bad. I always see a couple on my national Marktplaats (Dutch Ebay) for around 80 euro to 125 euro.
I started with google, and ended up on ebay, maybe that's the problem, as Marktplaats is ook mijn nationale ebay. ;)
The last one I bought was actually 25 euro, as it was sold by someone who sold the old APS analog "Canon EOS IX camera + lens". He had no idea that lens was the 24-85 and was just happy someone would buy this old analog camera from him. I had a lot of luck there, as everything was in pristine condition.
Ah, o.k., you did your research a whole lot better.
For portraits you of course don't have to stop down. And at 24mm you get sharp corners when stopping down, unlike some very modern lenses (yes I mean the RF 24-105 and RF 24-240 ;) )
:) Now I'm tempted to find such a deal to. :-D
 
While I really like the RF 24-240mm for a 10X superzoom it has some limitations. I believe on my EOS R is is very simliar to my RF24-105MMf4L through the 26-105mm range with the L lens having strong points of being weath sealed and constant aperature over it's full range. This L lens is a great 4.5X lens but not have the reach of the 24-240 and the differences between the two in the 24-26mm FL range are in the extreme corners which is not important for me. The 24-240 delivers good center sharpness through the entire 10X range which for me is amazingly better than the other 10X zooms I have owned.

The Sony 24-240mm is not as sharp as the RF 24-240mm in my opinion. Even the centers seem a little soft and it also has weak extreme corners at 24mm similar the the RF 24-240. Christopher Frost tests both RF and Sony 24-240 in separate reviews in detail. You can see the softness of the Sony lense in his review at:

Canon Rf 24-240mm review where he does the same tests:

The Sony lens is similar to some of the earlier Canon L series 10X lenses I owned however they got much better than the Sony if you stopped down a f stop or two.
 
Dustin Abbott says in this review of this lens: “Not particularly sharp at any focal length”.

Since I got the impression that my images with this lens were very sharp, I decided to do some pixel peeping of my own. I also own the RF 24-105mm F4 L IS USM which was used for this comparison.

A book shelf with books was shot as test target with the R5 from a tripod using both lenses at 50mm focal length. The aperture was set to f/5.0 being the largest aperture for the RF 24-240mm at 50mm, ASA setting was 400. Three images were taken with the same settings but with different locations of the AF-point: utmost left, center and utmost right. Its purpose was to verify that the sensor plane was parallel to the plane of the test target.

A crop of 900x1600 pixels was made of the left edge of the image in DPP using the raw images without any sharpening. The images were converted to jpeg for this forum.

Results: center sharpness was the same, even at 200%. But surprisingly the edge sharpness was also the same, even maybe slightly better for the non-L lens. I realise that there is more than sharpness to characterize the qualities of a lens, but still I found this result remarkable. By the way, I also own the RF 50mm f/1.2 which was included in the test and destroys everything else at that focal length but that is what you expect.

62d78759e90540dd9edd585be9279d5a.jpg

RF 24-105mm F4 L IS USM: edge sharpness

8aa93e166b744aa89308ad6818639962.jpg

RF 24-240mm F4-6.3 IS USM: edge sharpness
To be fair, there is some evidence that copy variation is slightly worse with this lens. That said, DA seems to be a bit of a lens snob. I was put off when he compared the Canon EF 85mm f/1.4 L to the Zeiss Otus 85mm. Forgetting the fact that the Canon is half the price, he also seemed to ignore the reality of shooting with a fast 85mm constrained to manual focus.
Sorry, DA compared the EF 85mm f/1.4 L IS USM to three other lenses, the Sigma Art, the Tamron f/1.8 VC, and yes, also that Otus. And yes, the Canon L was a bit disappointing wide open, but that was also compared to the other two options. Dustin Abbott did mention - as always - the downside of manual focus lenses.
The downside?? The truth is, manual focus lenses are a cop out. It's a lot harder to do an AF lens with IS than an old school manual lens. Canon did it at the same aperture for half the price of the Otus... The Otus is a nice optic for what it is: a borderline unusable anachronism from a bygone age.

As more people start shooting 4k and then 8k manual focus will start to become more and more impossible... fact. It doesn't matter how good the optics are if you can't get it in focus.
You're moving the goalpost. It was about Dustin Abbott, not about manual focus lenses.

Your statement about manual focus lenses is nonsense too. The focus assist of my R enables me to have perfect focus every shot with my Samyang 50mm f/1.2 XP. All it takes is just a little time, so for the speed you're limited, but for accuracy there are zero problems. The era manual focus lenses become usable has just started.
You're not wrong that manual focus lenses are easier to use than ever before. But saying you get "perfect focus every shot" I know is hyperbole. How do I know? Because I own dozens of vintage manual focus lenses and have used them with both the R and R5 with focus peaking enabled.

It's true that you can get close pretty easily, but as for "perfect focus every shot"? Not a chance in heck. Not unless you use 10x zoom for every shot and carefully set focus on a tripod of a perfectly static subject. Then maybe you could get "perfect focus every shot".

But as for shooting hand held and shooting a model, event, wedding, or sports?

I only have this to say: "Good Luck With That"
He did also mention sharpness and contrast isn't everything in a portrait lens. He mentioned the Canon having the best light transmission, and nice bokeh.

I don't know why you are framing Dustin Abbott as a reviewer with a total lack of nuance, but you don't impress me with that kind of nonsense, sorry.
It's almost impossible to get a shot in focus unless you work off a tripod with a sitting subject. Anyway, just my opinion.


--
Biden will save us!
 
Dustin Abbott says in this review of this lens: “Not particularly sharp at any focal length”.

Since I got the impression that my images with this lens were very sharp, I decided to do some pixel peeping of my own. I also own the RF 24-105mm F4 L IS USM which was used for this comparison.

A book shelf with books was shot as test target with the R5 from a tripod using both lenses at 50mm focal length. The aperture was set to f/5.0 being the largest aperture for the RF 24-240mm at 50mm, ASA setting was 400. Three images were taken with the same settings but with different locations of the AF-point: utmost left, center and utmost right. Its purpose was to verify that the sensor plane was parallel to the plane of the test target.

A crop of 900x1600 pixels was made of the left edge of the image in DPP using the raw images without any sharpening. The images were converted to jpeg for this forum.

Results: center sharpness was the same, even at 200%. But surprisingly the edge sharpness was also the same, even maybe slightly better for the non-L lens. I realise that there is more than sharpness to characterize the qualities of a lens, but still I found this result remarkable. By the way, I also own the RF 50mm f/1.2 which was included in the test and destroys everything else at that focal length but that is what you expect.

62d78759e90540dd9edd585be9279d5a.jpg

RF 24-105mm F4 L IS USM: edge sharpness

8aa93e166b744aa89308ad6818639962.jpg

RF 24-240mm F4-6.3 IS USM: edge sharpness
To be fair, there is some evidence that copy variation is slightly worse with this lens. That said, DA seems to be a bit of a lens snob. I was put off when he compared the Canon EF 85mm f/1.4 L to the Zeiss Otus 85mm. Forgetting the fact that the Canon is half the price, he also seemed to ignore the reality of shooting with a fast 85mm constrained to manual focus.
Sorry, DA compared the EF 85mm f/1.4 L IS USM to three other lenses, the Sigma Art, the Tamron f/1.8 VC, and yes, also that Otus. And yes, the Canon L was a bit disappointing wide open, but that was also compared to the other two options. Dustin Abbott did mention - as always - the downside of manual focus lenses. He did also mention sharpness and contrast isn't everything in a portrait lens. He mentioned the Canon having the best light transmission, and nice bokeh.

I don't know why you are framing Dustin Abbott as a reviewer with a total lack of nuance, but you don't impress me with that kind of nonsense, sorry.
It's almost impossible to get a shot in focus unless you work off a tripod with a sitting subject. Anyway, just my opinion.
DA said that on a tripod the Sigma Art and Otus were sharper but hand held the Canon 85mm f1.4 was maybe sharper because the other two lenses are have no stabilizaiton and the Canon 85mm f1.4 was close in sharpness to the the other two lenses. Neither DA or Cristopher Frost in their reviews conside the relatively awesome better speed of the focus in the EF 85mmf1.4L IS USM which is critical in opinion when doing indoor actions sports in a dark gym and for some event shooting. I have the Sigma 85mmf1.4 Art and it is a hair sharper on the EOS R. I think it might be even better on the R5 with more pixels this remains for me to be seen. The Simga 85 and 135 that have are both sharp but are pretty heavy that I will not us when there is a long carry when the heavy weight matters. My similar L grade EF glass is lighter and sharp enough so ordinary people usually with not notice the peepers concerns. I use the Sigmas for stationary portraits and for use on a tripod. The Sigmas are also not as good for SOOC JPEGs due a slight or subtle green look requiring postprocessing to get to the typical great Canon colors. I am sure others may think the Canon colors are too red but I am not one of them.
 
Dustin Abbott says in this review of this lens: “Not particularly sharp at any focal length”.

Since I got the impression that my images with this lens were very sharp, I decided to do some pixel peeping of my own. I also own the RF 24-105mm F4 L IS USM which was used for this comparison.

A book shelf with books was shot as test target with the R5 from a tripod using both lenses at 50mm focal length. The aperture was set to f/5.0 being the largest aperture for the RF 24-240mm at 50mm, ASA setting was 400. Three images were taken with the same settings but with different locations of the AF-point: utmost left, center and utmost right. Its purpose was to verify that the sensor plane was parallel to the plane of the test target.

A crop of 900x1600 pixels was made of the left edge of the image in DPP using the raw images without any sharpening. The images were converted to jpeg for this forum.

Results: center sharpness was the same, even at 200%. But surprisingly the edge sharpness was also the same, even maybe slightly better for the non-L lens. I realise that there is more than sharpness to characterize the qualities of a lens, but still I found this result remarkable. By the way, I also own the RF 50mm f/1.2 which was included in the test and destroys everything else at that focal length but that is what you expect.

62d78759e90540dd9edd585be9279d5a.jpg

RF 24-105mm F4 L IS USM: edge sharpness

8aa93e166b744aa89308ad6818639962.jpg

RF 24-240mm F4-6.3 IS USM: edge sharpness
To be fair, there is some evidence that copy variation is slightly worse with this lens. That said, DA seems to be a bit of a lens snob. I was put off when he compared the Canon EF 85mm f/1.4 L to the Zeiss Otus 85mm. Forgetting the fact that the Canon is half the price, he also seemed to ignore the reality of shooting with a fast 85mm constrained to manual focus.
Sorry, DA compared the EF 85mm f/1.4 L IS USM to three other lenses, the Sigma Art, the Tamron f/1.8 VC, and yes, also that Otus. And yes, the Canon L was a bit disappointing wide open, but that was also compared to the other two options. Dustin Abbott did mention - as always - the downside of manual focus lenses.
The downside?? The truth is, manual focus lenses are a cop out. It's a lot harder to do an AF lens with IS than an old school manual lens. Canon did it at the same aperture for half the price of the Otus... The Otus is a nice optic for what it is: a borderline unusable anachronism from a bygone age.

As more people start shooting 4k and then 8k manual focus will start to become more and more impossible... fact. It doesn't matter how good the optics are if you can't get it in focus.
You're moving the goalpost. It was about Dustin Abbott, not about manual focus lenses.

Your statement about manual focus lenses is nonsense too. The focus assist of my R enables me to have perfect focus every shot with my Samyang 50mm f/1.2 XP. All it takes is just a little time, so for the speed you're limited, but for accuracy there are zero problems. The era manual focus lenses become usable has just started.
You're not wrong that manual focus lenses are easier to use than ever before. But saying you get "perfect focus every shot" I know is hyperbole. How do I know? Because I own dozens of vintage manual focus lenses and have used them with both the R and R5 with focus peaking enabled.

It's true that you can get close pretty easily, but as for "perfect focus every shot"? Not a chance in heck. Not unless you use 10x zoom for every shot and carefully set focus on a tripod of a perfectly static subject. Then maybe you could get "perfect focus every shot".

But as for shooting hand held and shooting a model, event, wedding, or sports?

I only have this to say: "Good Luck With That"
Like i said:
All it takes is just a little time, so for the speed you're limited, but
He did also mention sharpness and contrast isn't everything in a portrait lens. He mentioned the Canon having the best light transmission, and nice bokeh.

I don't know why you are framing Dustin Abbott as a reviewer with a total lack of nuance, but you don't impress me with that kind of nonsense, sorry.
It's almost impossible to get a shot in focus unless you work off a tripod with a sitting subject. Anyway, just my opinion.
--
victory
 
Dustin Abbott says in this review of this lens: “Not particularly sharp at any focal length”.

Since I got the impression that my images with this lens were very sharp, I decided to do some pixel peeping of my own. I also own the RF 24-105mm F4 L IS USM which was used for this comparison.

A book shelf with books was shot as test target with the R5 from a tripod using both lenses at 50mm focal length. The aperture was set to f/5.0 being the largest aperture for the RF 24-240mm at 50mm, ASA setting was 400. Three images were taken with the same settings but with different locations of the AF-point: utmost left, center and utmost right. Its purpose was to verify that the sensor plane was parallel to the plane of the test target.

A crop of 900x1600 pixels was made of the left edge of the image in DPP using the raw images without any sharpening. The images were converted to jpeg for this forum.

Results: center sharpness was the same, even at 200%. But surprisingly the edge sharpness was also the same, even maybe slightly better for the non-L lens. I realise that there is more than sharpness to characterize the qualities of a lens, but still I found this result remarkable. By the way, I also own the RF 50mm f/1.2 which was included in the test and destroys everything else at that focal length but that is what you expect.

62d78759e90540dd9edd585be9279d5a.jpg

RF 24-105mm F4 L IS USM: edge sharpness

8aa93e166b744aa89308ad6818639962.jpg

RF 24-240mm F4-6.3 IS USM: edge sharpness
To be fair, there is some evidence that copy variation is slightly worse with this lens. That said, DA seems to be a bit of a lens snob. I was put off when he compared the Canon EF 85mm f/1.4 L to the Zeiss Otus 85mm. Forgetting the fact that the Canon is half the price, he also seemed to ignore the reality of shooting with a fast 85mm constrained to manual focus.
Sorry, DA compared the EF 85mm f/1.4 L IS USM to three other lenses, the Sigma Art, the Tamron f/1.8 VC, and yes, also that Otus. And yes, the Canon L was a bit disappointing wide open, but that was also compared to the other two options. Dustin Abbott did mention - as always - the downside of manual focus lenses. He did also mention sharpness and contrast isn't everything in a portrait lens. He mentioned the Canon having the best light transmission, and nice bokeh.

I don't know why you are framing Dustin Abbott as a reviewer with a total lack of nuance, but you don't impress me with that kind of nonsense, sorry.
It's almost impossible to get a shot in focus unless you work off a tripod with a sitting subject. Anyway, just my opinion.
DA said that on a tripod the Sigma Art and Otus were sharper but hand held the Canon 85mm f1.4 was maybe sharper because the other two lenses are have no stabilizaiton
From 1/250th and faster IS is not an advantage.
and the Canon 85mm f1.4 was close in sharpness to the the other two lenses.
It's all close, but the Canon was the softest wide open, and had the most CA.
Neither DA or Cristopher Frost in their reviews conside the relatively awesome better speed of the focus in the EF 85mmf1.4L IS USM which is critical in opinion when doing indoor actions sports in a dark gym and for some event shooting.
I don't do that kind of shooting, but i believe you. And i agree that can be a huge advantage. I think both my 105mm Art and RF 85mm f/2.0 aren't up to these tasks, however, if i need fast AF i switch to my 50mm Art or 24-70mm mkII.
I have the Sigma 85mmf1.4 Art and it is a hair sharper on the EOS R. I think it might be even better on the R5 with more pixels this remains for me to be seen. The Simga 85 and 135 that have are both sharp but are pretty heavy that I will not us when there is a long carry when the heavy weight matters.
I'm just an amateur, when i'm done with the weight I'm done with shooting. I can imagine weight is a factor when you have to get a job done.
My similar L grade EF glass is lighter and sharp enough so ordinary people usually with not notice the peepers concerns. I use the Sigmas for stationary portraits and for use on a tripod. The Sigmas are also not as good for SOOC JPEGs due a slight or subtle green look requiring postprocessing to get to the typical great Canon colors. I am sure others may think the Canon colors are too red but I am not one of them.
I'm with you on that last one. I turned up the reds slightly in my R to compensate a bit. This makes the Sigmas red enough, and still the Canon lenses not too red for me.

--
victory
 
Dustin Abbott says in this review of this lens: “Not particularly sharp at any focal length”.

Since I got the impression that my images with this lens were very sharp, I decided to do some pixel peeping of my own. I also own the RF 24-105mm F4 L IS USM which was used for this comparison.

A book shelf with books was shot as test target with the R5 from a tripod using both lenses at 50mm focal length. The aperture was set to f/5.0 being the largest aperture for the RF 24-240mm at 50mm, ASA setting was 400. Three images were taken with the same settings but with different locations of the AF-point: utmost left, center and utmost right. Its purpose was to verify that the sensor plane was parallel to the plane of the test target.

A crop of 900x1600 pixels was made of the left edge of the image in DPP using the raw images without any sharpening. The images were converted to jpeg for this forum.

Results: center sharpness was the same, even at 200%. But surprisingly the edge sharpness was also the same, even maybe slightly better for the non-L lens. I realise that there is more than sharpness to characterize the qualities of a lens, but still I found this result remarkable. By the way, I also own the RF 50mm f/1.2 which was included in the test and destroys everything else at that focal length but that is what you expect.

62d78759e90540dd9edd585be9279d5a.jpg

RF 24-105mm F4 L IS USM: edge sharpness

8aa93e166b744aa89308ad6818639962.jpg

RF 24-240mm F4-6.3 IS USM: edge sharpness
To be fair, there is some evidence that copy variation is slightly worse with this lens. That said, DA seems to be a bit of a lens snob. I was put off when he compared the Canon EF 85mm f/1.4 L to the Zeiss Otus 85mm. Forgetting the fact that the Canon is half the price, he also seemed to ignore the reality of shooting with a fast 85mm constrained to manual focus.
Sorry, DA compared the EF 85mm f/1.4 L IS USM to three other lenses, the Sigma Art, the Tamron f/1.8 VC, and yes, also that Otus. And yes, the Canon L was a bit disappointing wide open, but that was also compared to the other two options. Dustin Abbott did mention - as always - the downside of manual focus lenses. He did also mention sharpness and contrast isn't everything in a portrait lens. He mentioned the Canon having the best light transmission, and nice bokeh.

I don't know why you are framing Dustin Abbott as a reviewer with a total lack of nuance, but you don't impress me with that kind of nonsense, sorry.
It's almost impossible to get a shot in focus unless you work off a tripod with a sitting subject. Anyway, just my opinion.
DA said that on a tripod the Sigma Art and Otus were sharper but hand held the Canon 85mm f1.4 was maybe sharper because the other two lenses are have no stabilizaiton
From 1/250th and faster IS is not an advantage.
and the Canon 85mm f1.4 was close in sharpness to the the other two lenses.
It's all close, but the Canon was the softest wide open, and had the most CA.
Neither DA or Cristopher Frost in their reviews conside the relatively awesome better speed of the focus in the EF 85mmf1.4L IS USM which is critical in opinion when doing indoor actions sports in a dark gym and for some event shooting.
I don't do that kind of shooting, but i believe you. And i agree that can be a huge advantage. I think both my 105mm Art and RF 85mm f/2.0 aren't up to these tasks, however, if i need fast AF i switch to my 50mm Art or 24-70mm mkII.
I have the Sigma 85mmf1.4 Art and it is a hair sharper on the EOS R. I think it might be even better on the R5 with more pixels this remains for me to be seen. The Simga 85 and 135 that have are both sharp but are pretty heavy that I will not us when there is a long carry when the heavy weight matters.
I'm just an amateur, when i'm done with the weight I'm done with shooting. I can imagine weight is a factor when you have to get a job done.
My similar L grade EF glass is lighter and sharp enough so ordinary people usually with not notice the peepers concerns. I use the Sigmas for stationary portraits and for use on a tripod. The Sigmas are also not as good for SOOC JPEGs due a slight or subtle green look requiring postprocessing to get to the typical great Canon colors. I am sure others may think the Canon colors are too red but I am not one of them.
I'm with you on that last one. I turned up the reds slightly in my R to compensate a bit. This makes the Sigmas red enough, and still the Canon lenses not too red for me.
Sigma is a great lens for people just starting out with photography!

--
Biden will save us!
 
Tell that to Lee Baby Simms when he praises the 105mm Art.
 
Dustin Abbott says in this review of this lens: “Not particularly sharp at any focal length”.

Since I got the impression that my images with this lens were very sharp, I decided to do some pixel peeping of my own. I also own the RF 24-105mm F4 L IS USM which was used for this comparison.

A book shelf with books was shot as test target with the R5 from a tripod using both lenses at 50mm focal length. The aperture was set to f/5.0 being the largest aperture for the RF 24-240mm at 50mm, ASA setting was 400. Three images were taken with the same settings but with different locations of the AF-point: utmost left, center and utmost right. Its purpose was to verify that the sensor plane was parallel to the plane of the test target.

A crop of 900x1600 pixels was made of the left edge of the image in DPP using the raw images without any sharpening. The images were converted to jpeg for this forum.

Results: center sharpness was the same, even at 200%. But surprisingly the edge sharpness was also the same, even maybe slightly better for the non-L lens. I realise that there is more than sharpness to characterize the qualities of a lens, but still I found this result remarkable. By the way, I also own the RF 50mm f/1.2 which was included in the test and destroys everything else at that focal length but that is what you expect.

62d78759e90540dd9edd585be9279d5a.jpg

RF 24-105mm F4 L IS USM: edge sharpness

8aa93e166b744aa89308ad6818639962.jpg

RF 24-240mm F4-6.3 IS USM: edge sharpness
To be fair, there is some evidence that copy variation is slightly worse with this lens. That said, DA seems to be a bit of a lens snob. I was put off when he compared the Canon EF 85mm f/1.4 L to the Zeiss Otus 85mm. Forgetting the fact that the Canon is half the price, he also seemed to ignore the reality of shooting with a fast 85mm constrained to manual focus.
Sorry, DA compared the EF 85mm f/1.4 L IS USM to three other lenses, the Sigma Art, the Tamron f/1.8 VC, and yes, also that Otus. And yes, the Canon L was a bit disappointing wide open, but that was also compared to the other two options. Dustin Abbott did mention - as always - the downside of manual focus lenses. He did also mention sharpness and contrast isn't everything in a portrait lens. He mentioned the Canon having the best light transmission, and nice bokeh.

I don't know why you are framing Dustin Abbott as a reviewer with a total lack of nuance, but you don't impress me with that kind of nonsense, sorry.
It's almost impossible to get a shot in focus unless you work off a tripod with a sitting subject. Anyway, just my opinion.
DA said that on a tripod the Sigma Art and Otus were sharper but hand held the Canon 85mm f1.4 was maybe sharper because the other two lenses are have no stabilizaiton
From 1/250th and faster IS is not an advantage.
and the Canon 85mm f1.4 was close in sharpness to the the other two lenses.
It's all close, but the Canon was the softest wide open, and had the most CA.
Neither DA or Cristopher Frost in their reviews conside the relatively awesome better speed of the focus in the EF 85mmf1.4L IS USM which is critical in opinion when doing indoor actions sports in a dark gym and for some event shooting.
I don't do that kind of shooting, but i believe you. And i agree that can be a huge advantage. I think both my 105mm Art and RF 85mm f/2.0 aren't up to these tasks, however, if i need fast AF i switch to my 50mm Art or 24-70mm mkII.
I have the Sigma 85mmf1.4 Art and it is a hair sharper on the EOS R. I think it might be even better on the R5 with more pixels this remains for me to be seen. The Simga 85 and 135 that have are both sharp but are pretty heavy that I will not us when there is a long carry when the heavy weight matters.
I'm just an amateur, when i'm done with the weight I'm done with shooting. I can imagine weight is a factor when you have to get a job done.
My similar L grade EF glass is lighter and sharp enough so ordinary people usually with not notice the peepers concerns. I use the Sigmas for stationary portraits and for use on a tripod. The Sigmas are also not as good for SOOC JPEGs due a slight or subtle green look requiring postprocessing to get to the typical great Canon colors. I am sure others may think the Canon colors are too red but I am not one of them.
I'm with you on that last one. I turned up the reds slightly in my R to compensate a bit. This makes the Sigmas red enough, and still the Canon lenses not too red for me.
Sigma is a great lens for people just starting out with photography!
Sigma ART Canon EF mount series are in my view great sharp prime lenses. I have the 50, 85 and 135 Art as well as many of the Canon primes at the same FL. The Sigmas are big and heavy and need a little red tweak but they are sharper than any of three Canon EF 50mm (f1.0, f1.4, & f1.8), two Canon EF 85mm (f1.2 ii, f1.4) and Canon 135mm (f2). The sharpness difference in corners was not really noticeable to my standard at 20MP sensor camera but began to be weakly observable in the corners at 30MP. Now have a R5 on preorder and expect the Sigmas corners will show up even more. However, others around me rarely notice this and think I am crazy for using the big heavy monsters. Due to their bulk and weight I use only the my Canon primes which are smaller and have better trustable color for SOOC JPEGs, except in special circumstance in the field where I then do carry them. It also important to note the fact that the Art lenses were half to a third the price of my Canon primes so I do have nearly as money in them as the Canon. lenses. I actually bought all three in excellent nearly new condion used for less than the cost of the any of the RF mount f1.2 Canon primes ($2500) which I did not buy.
 
Has anyone seen any professional reviews of this lens (RF 24-240mm F4-6.3 IS USM) with the R5? They seem to not exist.
 
I can tell your an old film shooter with the reference to ASA vs ISO lol I grew up with that too. Anyhow, thats not really a good comparison because stoping down any lens will look a lot better. I'm not a fan of shooting charts and lines. Take it outside and shoot textures like birds, trees, objects you can zoom in on in post to see how sharp things are.

Isn't that all that really matters? BTW Abbot is a pompous yuppie that thinks way too much of himself. I find it hard to take photography advice from a guy that has never posted anything good. He takes snap shots imho.
 
Has anyone seen any professional reviews of this lens (RF 24-240mm F4-6.3 IS USM) with the R5? They seem to not exist.
They don't exist because almost all reviews happen when the lens comes out with the best available camera. They don't get a lot of clicks for reviewing an old lens with a new body. The RF24-240 came out before the R5.

The easiest site to check (because it is well organized) is The Digital Picture. They don't have tests with the R5 for the RF24-105f4L, RF28-70f2L, RF85f1.2, and RF35f1.8. They did circle back on the f2.8 trilogy and the RF50f1.2 that came out before the R5.

I have personally run tests on my 42-inch/~1meter wide test chart against every RFf2.8L lens Canon makes and the RF100-500, RF85f2, and RF50f1.8.

The AF is very good (maybe a tad slower than the Ls), and the stabilization is excellent.

In the center at every focal length and wide open, it is hard to see a difference in the center at the same aperture with an L (of course, the L's go lower in f-numbers).

It is pretty good even in the corners from about 70mm to 135mm, but you can tell it from the L's, but it is not bad. I happen to have an EF100-400 mk.1, and at 100mm, the RF24-240 is better than it even in the corners (it is softer in the corners than the EF100-400mk.1 at 240mm).

From 24mm to about 50mm, it loses significant resolution in the corners but nicely maintains good contrast (using DPP4 conversion software). At the wide-end, stopping down does not help much (it does some) because much of the resolution loss is coming from distortion correction.

Similarly, from about 135mm on out, it gets gradually softer in the corners but maintains good contrast.

For a 10x zoom, it is what I considered well-behaved and predictable compared to EF zoom lenses of the past. Personally, I consider it the best value and most fun lens in the RF lineup, particularly with the good AF and great IS. It delivers sharp images in the center of the frame. You will see a lot of people that own the lens sing its praises on this forum. As I wrote, I have all f2.8L plus the 100-500, and if I am just walking about, it is the lens I will pick.
 
Karl, I agree with you. I know earlier on another thread "neuropsycho" dissed the lens some, but we all have to paddle our own canoe. I posted my Wisconsin photos made with R5 + 24-240 and stand by my photos and the ease of using a 10x zoom. As I mentioned in the post I had the RF 24-105 f4 and didn't take one snap with it.

I guess he's a Sony shooter and the Canon body he has is older.

The eagle photo I posted was a tough shot from a moving boat and heavily cropped. It is not a good example of the other photos I made with the 24-240. I'm not PO'ed at neuro but just taking up for the lens.

Here are my flickr photos of other photos with the 24-240.


To each his own. I'm 79 years old and the days of me lugging around a lots of gear are in my past.

Kent
 
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