The mystical IQ of DSLR's

IQ on my pen is just good as most any APS DSLR (even up to 1600 ISO). Anyone who says their SLR is far superior hasn't tried a Pen. And the M14-42 Std lens that I'm using is excellent. Though not up to my 12-60 for sharpness but close. I feel the some SLR users are starting to feel threatened by the PEN/GF cameras..they shouldnt. They should buy one and use it for travel or the perfect back up.
I think what you'll find is that most of the responders in this thread who claim that APS-C still has the edge actually own DSLRs and MFT cameras .

Whereas most of the pundits who believe that the two are equal usually don't.

I don't think DSLRs are "far" superior. They're close. But still ahead.
 
Ive actually used many DSLRs: new and old: Canons, Nikons and Olympus.

I would say image sharpness from the PEN camera I own is just about as good any 12 MP DSLR . Where the DLSRs really shine is there exposure latitude with less blown highlights. Noise is excellent in the Pen -just as good as some current APS slrs.

Yes some DSLRs are still ahead in image quality....but only some

My Job is a large format printer -so I see hundreds of files from various cameras. In the final print it is near impossible to tell if it was taken with a M4/3 or an APS sensor camera. The only files I see that are Truly Mystical are from the occasional digital medium format or large format files.
 
Yep...

If there wasn't a good APS camera even smaller than micro 4/3 models, I would get another Panasonic GF1. GF1 was the first one I owned/tried, then GH1, then E-PL1. Always have to try for your self. Will probably grab one of the next generation micro 4/3 to try as well.

Once E-P1 is price is down to the point of being almost free I might grab one anyways just to get the 7-14 lens. Actually hoping to see an e-mount to micro 4/3 adapter.
 
Voldenuit : i never said they were better or equal: I what i ment to say was: the Pen is just as good as most (but not all) APS-c cameras for IQ.

some APS-c cameras have a slight edge--but only slight... so yes i agree theyre close.

cheers eh
 
if you think the D90 IQ acceptable , try the NEX and be honest with yourself , you will be blown a way.

IQ wise , the NEX is the best APS-C to date and it is almost rivaling to any of 4 fullframes currently available, maybe besides the A900..
We'll have to agree to disagree on that one Raj, which is fine, I just don't see real world differences.
That's fine as you probably haven't encountered situations where you've hit the limitations of the 4/3s sensors, which depends a lot on one's choice of subject.

So far, in my experience, the only 4/3s camera that gives excellent DR in the shadows (shadow lifting) is the E-1. I recently made a 13x19 print of a shot taken in Sandy Hook NJ and the DR in that shot simply blows me away. I lifted shadows by almost 2EV with zero noise. The only other camera I've owned and used which has allowed me to do that is the D90. As you might recall, I recently sold my E-30 due to this very limitation.
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Raj Sarma
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There's nothing mystical about it. All else being equal, a larger sensor produces better IQ because of it's superior light gathering ability. Most entry level DSLR's have about 50% more area than micro 4/3 sensors.

It's physics and all of your equivocating won't change it.

--
Don
http://www.pbase.com/dond
Ah yes, because physics always equates to IQ in real life usage doesn't it. It brings us back to all things being equal, which they never are. The D3000 has more light gathering ability, bigger sensor blah blah blah blah, but it gets kicked into touch by the IQ of the PL-1 - how is this possible?
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Tony
http://the-random-photographer.blogspot.com/

warning my posts often contain humour,if you do not understand this concept look it up in the dictionary.
 
This is in response to Voldenuit

Image quality is more than just light gathering ability and whatnot. To me, it's what your picture looks like out of the camera. I own a 7D and find myself going for the PEN more often. I've got the 20mm Panasonic and it pretty much levels the low light playing field between the two cameras without giving me a ridiculously shallow depth of field like a similar lens would on my DSLR. Of course, I also have IS with that f1.7 lens because it's built into the PEN.

And yes, the 7D focuses way, way faster, but I'm also used to shooting with a G11, so I know how to work with slow focusing.

Anyway, there's more to image quality than the sensor. If you want more than a sliver of focus, you have to stop down your lens on a DSLR, which increases your ISO/noise. Do you have IS on all your lenses? If not, you must increase your shutter speed, which increases noise/ISO. Does your camera have accurate colors, well balanced noise reduction? Do the jpegs look great out of the camera or do you have to shoot raw and tweak them yourself?

And of course, there's lenses. A PEN with that Panasonic lens is going to give you sharper images than a Rebel with a kit lens and they both cost about the same.

You can say "all things being equal" that a larger sensor wins, but all things aren't equal. Besides, as I've argued before, if I've got enough light, the tiny sensor of my G11 gives fantastic image quality and IMO better than many older DSLRs. I think it's not just the size of the sensor, but the current technology and quality of the sensor.
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Tony
 
This is in response to Voldenuit

Image quality is more than just light gathering ability and whatnot. To me, it's what your picture looks like out of the camera. I own a 7D and find myself going for the PEN more often. I've got the 20mm Panasonic and it pretty much levels the low light playing field between the two cameras without giving me a ridiculously shallow depth of field like a similar lens would on my DSLR. Of course, I also have IS with that f1.7 lens because it's built into the PEN.

And yes, the 7D focuses way, way faster, but I'm also used to shooting with a G11, so I know how to work with slow focusing.

Anyway, there's more to image quality than the sensor. If you want more than a sliver of focus, you have to stop down your lens on a DSLR, which increases your ISO/noise. Do you have IS on all your lenses? If not, you must increase your shutter speed, which increases noise/ISO. Does your camera have accurate colors, well balanced noise reduction? Do the jpegs look great out of the camera or do you have to shoot raw and tweak them yourself?

And of course, there's lenses. A PEN with that Panasonic lens is going to give you sharper images than a Rebel with a kit lens and they both cost about the same.

You can say "all things being equal" that a larger sensor wins, but all things aren't equal. Besides, as I've argued before, if I've got enough light, the tiny sensor of my G11 gives fantastic image quality and IMO better than many older DSLRs. I think it's not just the size of the sensor, but the current technology and quality of the sensor.
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Tony
From one Tony to another, thanks, that's exactly what I am saying. I'll leave the Physics and equivalence to the mathematicians, I prefer to use my eye's in real world usage. All things are never equal.
--
Tony
http://the-random-photographer.blogspot.com/

warning my posts often contain humour,if you do not understand this concept look it up in the dictionary.
 
These images were taken using a Canon 350D (Rebel XT). Can a u4/3 camera do this?





That's a pretty spurious argument really, can your rebel give you the same deep dof I can get at the same aperture with my Pen? of course it can't, same as I can't match a P&S. Deeper dof is more desirable in many instances, not less.

Do you have an equivalent to the 12-60mm zuiko to fit on your Canon, no you don't, because there isn't one, and so on. Like I said, things are never equal like the mathematicians and purists would have us believe.

I could stick my 50-200mm 2.8-3.5 on the PL-1 and get extremely shallow dof using distance to subject etc. Similarly I could use the Sigma 30mm 1.4 and get dof so thin it makes it difficult to get the correct point of focus.
Do you need dof any shallower than this? this is only F2.



Different sensor sizes all have their strengths and weaknesses but that is not the point of this thread.
--
Tony
http://the-random-photographer.blogspot.com/

warning my posts often contain humour,if you do not understand this concept look it up in the dictionary.
 
This is in response to Voldenuit

Image quality is more than just light gathering ability and whatnot. To me, it's what your picture looks like out of the camera. I own a 7D and find myself going for the PEN more often.
No argument there. You'll note that in my original post I specifically noted that MFT has some very nice lenses in its range. I also own a 40D and find myself reaching for the GF1 most of the time.

However, once you move outside of MFT's comfort zone (bright light, static subjects), the DSLR will shine more. There are more fast lenses in EF mount than MFT, but on top of that, the performance of the MFT sensor is still not up to par with the current state of the art sensors for other systems, even when adjusted for sensor size.

The problem is that the OP claimed that DSLRs had no advantage in IQ, and when challenged on that score, moved the goalposts to suit himself. As you yourself pointed out, in bright light, even P&Ses can rival DSLRs, and there is a bigger gap between the two than there is between MFT and a DSLR.

I find it strange that you have difficulty getting subjects in focus with your 7D, since its DOF is a bit less than one stop shallower. If you compare the 20/1.7 to a 28/1.8 prime on the 1.6x crop sensor, you should find that the higher ISO capabilities of the 7D should easily overcome a one stop difference in aperture.

Anyway, I certainly feel that even with what I consider a deficit, MFT is still a very competitive format. As you say, it's not all about the sensor, and frankly, I'd much rather Panasonic and Olympus focus on putting out more good lenses faster than new bodies. After all, bodies in the digital age are pretty much disposable, due to the fast pace of advancement.
 
This is in response to Voldenuit

Image quality is more than just light gathering ability and whatnot. To me, it's what your picture looks like out of the camera. I own a 7D and find myself going for the PEN more often.
No argument there. You'll note that in my original post I specifically noted that MFT has some very nice lenses in its range. I also own a 40D and find myself reaching for the GF1 most of the time.

However, once you move outside of MFT's comfort zone (bright light, static subjects), the DSLR will shine more. There are more fast lenses in EF mount than MFT, but on top of that, the performance of the MFT sensor is still not up to par with the current state of the art sensors for other systems, even when adjusted for sensor size.

The problem is that the OP claimed that DSLRs had no advantage in IQ, and when challenged on that score, moved the goalposts to suit himself. As you yourself pointed out, in bright light, even P&Ses can rival DSLRs, and there is a bigger gap between the two than there is between MFT and a DSLR.
No, what I am saying, is that in real world usage, for the majority of shooting, there is no visible advantage, in fact, in certain situations you could argue in favour of m4/3's. For specific situations you could argue in favour of pretty much any format. There is no magical rise in IQ when using DSLR's, just the occasional scenario where a bit more DR is useful, but as I said, dynamic range isn't the be all and end all.
I find it strange that you have difficulty getting subjects in focus with your 7D, since its DOF is a bit less than one stop shallower. If you compare the 20/1.7 to a 28/1.8 prime on the 1.6x crop sensor, you should find that the higher ISO capabilities of the 7D should easily overcome a one stop difference in aperture.

Anyway, I certainly feel that even with what I consider a deficit, MFT is still a very competitive format. As you say, it's not all about the sensor, and frankly, I'd much rather Panasonic and Olympus focus on putting out more good lenses faster than new bodies. After all, bodies in the digital age are pretty much disposable, due to the fast pace of advancement.
--
Tony
http://the-random-photographer.blogspot.com/

warning my posts often contain humour,if you do not understand this concept look it up in the dictionary.
 
There's nothing mystical about it. All else being equal, a larger sensor produces better IQ because of it's superior light gathering ability. Most entry level DSLR's have about 50% more area than micro 4/3 sensors.

It's physics and all of your equivocating won't change it.

--
Don
http://www.pbase.com/dond
Ah yes, because physics always equates to IQ in real life usage doesn't it. It brings us back to all things being equal, which they never are. The D3000 has more light gathering ability, bigger sensor blah blah blah blah, but it gets kicked into touch by the IQ of the PL-1 - how is this possible?
--
Tony
http://the-random-photographer.blogspot.com/

warning my posts often contain humour,if you do not understand this concept look it up in the dictionary.
It's possible because the D3000 uses an (old technology) 10.2 megapixel CCD sensor, not a competitive APS-C CMOS sensor. There you have it!

Mike
 
IQ on my pen is just good as most any APS DSLR (even up to 1600 ISO). Anyone who says their SLR is far superior hasn't tried a Pen.
As mentioned, crop DSLR's have only about 50% more sensor area and shouldn't be far superior.
If the sensor tech is similar it will only be slightly better.
I feel the some SLR users are starting to feel threatened by the PEN/GF cameras..they shouldnt. They should buy one and use it for travel or the perfect back up.
If they do feel threatened I am sure they are just questioning there decision to get a DSLR in the first place ;)

While I use a DSLR now I can definitely see myself getting some kind of EVIL camera in the future.
 
There's nothing mystical about it. All else being equal, a larger sensor produces better IQ because of it's superior light gathering ability. Most entry level DSLR's have about 50% more area than micro 4/3 sensors.

It's physics and all of your equivocating won't change it.

--
Don
http://www.pbase.com/dond
Ah yes, because physics always equates to IQ in real life usage doesn't it. It brings us back to all things being equal, which they never are. The D3000 has more light gathering ability, bigger sensor blah blah blah blah, but it gets kicked into touch by the IQ of the PL-1 - how is this possible?
Older tech. The camera is quite new, but the image sensor in it is not (it's the same 10 MP CCD used in the D200 way back).

The same sensor technology being used the larger one will always have better IQ, but the difference between m4/3 and APS-C is not very large.
 
There's nothing mystical about it. All else being equal, a larger sensor produces better IQ because of it's superior light gathering ability. Most entry level DSLR's have about 50% more area than micro 4/3 sensors.

It's physics and all of your equivocating won't change it.

--
Don
http://www.pbase.com/dond
Ah yes, because physics always equates to IQ in real life usage doesn't it. It brings us back to all things being equal, which they never are. The D3000 has more light gathering ability, bigger sensor blah blah blah blah, but it gets kicked into touch by the IQ of the PL-1 - how is this possible?
--
Tony
http://the-random-photographer.blogspot.com/

warning my posts often contain humour,if you do not understand this concept look it up in the dictionary.
It's possible because the D3000 uses an (old technology) 10.2 megapixel CCD sensor, not a competitive APS-C CMOS sensor. There you have it!

Mike
I'll refer you back to my original comments about the E-30 being a direct competitor to the D90 and 50D. The only thing DPR really criticised the E-30 for was it's original price. The EPL-1 sensor is quite a bit better than the E-30's in many ways, so there is no great difference, just a touch more high ISO performance, which as I keep saying, is not the sole determinant of IQ. People keep forgetting that the 4/3's sensor in m4/3's camera's is the same size as the one used in 4/3's DSLR's and they are very competitive with APS camera's. The only difference is that the sensors in the Pens are actually better than their bigger cousins. DP review themselves acknowledge the m4/3's camera's as having DSLR quality IQ, what's not to understand here. I know it might dent the pride of a few people wedded to their respective brands but that's the truth of it.
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Tony
http://the-random-photographer.blogspot.com/

warning my posts often contain humour,if you do not understand this concept look it up in the dictionary.
 
Well I've shot film and how hard is it for me to download raw files, look at examples full size or research IQ in other camera's without actually owning one?
Are you suggesting that I have to physically buy a camera to assess it's IQ?

Seems a bit pointless people running review sites and providing examples on that basis.
Well, it wouldnt hurt, i dont think. Esp. before making vast generalizations or proclaimations.
How about this for a vast generalisation then, a quote from DPR about a m4/3's camera at the end of its review.

"Compact camera users who want the image quality of a DSLR but with the additional level of control remaining optional."

Presumably the comments from other people in this thread, who also see what I see, are also vast generalisations?
Well, i guess theres no point in trying to argue with you. I will only say, look at what happened with APSc vs 43 .. and look at initial sales of Sony NEX. APSc didnt completely trample 43 for no reason. I shot everything from 1/1.8, 2/3, 4/3, APSc, and now FF and i dont pretend that there are no differences... its not even linear.. more like exponential increases.
--
Tony
http://the-random-photographer.blogspot.com/

warning my posts often contain humour,if you do not understand this concept look it up in the dictionary.
 
Well I've shot film and how hard is it for me to download raw files, look at examples full size or research IQ in other camera's without actually owning one?
Are you suggesting that I have to physically buy a camera to assess it's IQ?

Seems a bit pointless people running review sites and providing examples on that basis.
Well, it wouldnt hurt, i dont think. Esp. before making vast generalizations or proclaimations.
How about this for a vast generalisation then, a quote from DPR about a m4/3's camera at the end of its review.

"Compact camera users who want the image quality of a DSLR but with the additional level of control remaining optional."

Presumably the comments from other people in this thread, who also see what I see, are also vast generalisations?
Well, i guess theres no point in trying to argue with you. I will only say, look at what happened with APSc vs 43 .. and look at initial sales of Sony NEX. APSc didnt completely trample 43 for no reason. I shot everything from 1/1.8, 2/3, 4/3, APSc, and now FF and i dont pretend that there are no differences... its not even linear.. more like exponential increases.
Nikon and Canon had an established market because Olympus dropped out of the AF game and abandoned the OM series, it had nothing to do with the sensor size. Oly was late to the game with their first DSLR, which was the Pro specified E-1. Nikon and Canon already had a large foothold. I too shoot a lot of formats, I know the strengths and weaknesses of them all and that's how I know that for general shooting and outside of extremes the 4/3's sensors compete on an IQ basis. All systems are compromises, they are the best compromise for me YMMV.
--
Tony
http://the-random-photographer.blogspot.com/

warning my posts often contain humour,if you do not understand this concept look it up in the dictionary.
--
Tony
http://the-random-photographer.blogspot.com/

warning my posts often contain humour,if you do not understand this concept look it up in the dictionary.
 
Even though it is often expressed that way.

Take the same image, under the same conditions, with the same settings using an EPL1 and an E30, and when you start examining the files closely you may discover that the EPL1 image is "better."

And so people with your mindset might quickly dismiss the DSLR as being obsolete or irrelvant.

But there are other reasons why people can prefer a DSLR, even if a compact mirrorless camera can come very close, or even exceed the image quality.
  • They simply feel better in the hands of people who are more familiar with using DSLRs
  • They offer a much wider range of controls
  • Controls are accessable through direct buttons rather than menus
  • They really do work better with long lenses, in terms of balance and feel
  • No matter how good an add on EVF is, some will always prefer a good OVF
  • Some people have larger hands, and tiny cameras don't suit them
  • Some folks really like that nice loud mirror clunk. I know I do.
  • M4/3 lenses are still very expensive. 4/3 9-18mm is $475. M4/3 version $700!
  • There really are a lot more lenses you can use without having to use an adapter
  • If you like having a tilt LCD, then you can't find one on a Pen
  • No one is impressed when you whip out an EPL1. Fashion models will laugh at you
  • No one will ever accuse M4/3 of being a great value. Not when you can get a pretty good DSLR with two lenses for less than the cheapest M4/3 camera sold today.
And I know what you're thinking. Absolutely none of the above has anything to do with image quality.

But it still counts for something.

If IQ was the only thing that mattered, I would have purchased an EPL1 rather than an EP1. They were both the same price. But I really liked the build quality and feel of the EP1, and in my case at least, I felt this was more important than "slightly better IQ at ISO 1600."

So, you're right if IQ is the only thing that matters. But it isn't.

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Marty
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Olympus E-30
Olympus E-P1

 

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