Canon RF 24-105mm f/3.5-5.6 IS STM Incoming

My interest in this system is evaporating.
You're missing the point. There is already a f4 version of this lens and it performs great. This is for light weight carry about and really in the end it is to replace APSC cameras with FF cameras and smaller lenses by using smaller apertures. This lens is FASTER than an APSC f5.6 lens.
except for focusing. I can’t imagine this lens is going to focus very quickly at that aperture
A 30MP sensor like in the R has bigger pixels than say a 24 or 33 MP Canon APSC, so even though the light density per square area (that's what the aperture number is) of this lens would be lower than say a f5.6 APSC lens, each pixel is still going to receive more light. Why would AF slow down say in relation to the f5.6 APSC lens on an APSC camera?
The RF mount has more exotic high performance lenses than any mirrorless. If that is what you want it is already there. This is an alternate to APSC cameras or when you want a lighter setup using the same camera you mount the bazooka f1.2 lenses on.

In the end this is the APSC killer lens. Both for Canon and everyone else.
doubt it will do much. Sony has a super cheap kit lens too and that hasn’t done much to apsc sales
Slow process for sure. APSC really only existed because early on in digital the price difference between APSC and FF sensors was quite large. Now much less.
it also existed for birders- reach - getting more pixels on the subject
Good point, if one only is interested in that one thing. If one shoots birds and other stuff a high MP FF camera is more versatile.
last I checked these high mpxl FF cameras with high fps are very expensive
 
My interest in this system is evaporating.
You're missing the point. There is already a f4 version of this lens and it performs great. This is for light weight carry about and really in the end it is to replace APSC cameras with FF cameras and smaller lenses by using smaller apertures. This lens is FASTER than an APSC f5.6 lens.
except for focusing. I can’t imagine this lens is going to focus very quickly at that aperture
A 30MP sensor like in the R has bigger pixels than say a 24 or 33 MP Canon APSC, so even though the light density per square area (that's what the aperture number is) of this lens would be lower than say a f5.6 APSC lens, each pixel is still going to receive more light. Why would AF slow down say in relation to the f5.6 APSC lens on an APSC camera?
The RF mount has more exotic high performance lenses than any mirrorless. If that is what you want it is already there. This is an alternate to APSC cameras or when you want a lighter setup using the same camera you mount the bazooka f1.2 lenses on.

In the end this is the APSC killer lens. Both for Canon and everyone else.
doubt it will do much. Sony has a super cheap kit lens too and that hasn’t done much to apsc sales
Slow process for sure. APSC really only existed because early on in digital the price difference between APSC and FF sensors was quite large. Now much less.
it also existed for birders- reach - getting more pixels on the subject
Good point, if one only is interested in that one thing. If one shoots birds and other stuff a high MP FF camera is more versatile.
last I checked these high mpxl FF cameras with high fps are very expensive
Yes. No real reason other than the market will bear that at the moment. I'm talking about something that is going to be a gradual evolution. This lens is a first step. Next will be FF cameras below $1K. Like I said in another post it will take many years but this lens is a clear sign that Canon knows where things are heading.
 
My interest in this system is evaporating.
You're missing the point. There is already a f4 version of this lens and it performs great. This is for light weight carry about and really in the end it is to replace APSC cameras with FF cameras and smaller lenses by using smaller apertures. This lens is FASTER than an APSC f5.6 lens.
except for focusing. I can’t imagine this lens is going to focus very quickly at that aperture
A 30MP sensor like in the R has bigger pixels than say a 24 or 33 MP Canon APSC, so even though the light density per square area (that's what the aperture number is) of this lens would be lower than say a f5.6 APSC lens, each pixel is still going to receive more light. Why would AF slow down say in relation to the f5.6 APSC lens on an APSC camera?
The RF mount has more exotic high performance lenses than any mirrorless. If that is what you want it is already there. This is an alternate to APSC cameras or when you want a lighter setup using the same camera you mount the bazooka f1.2 lenses on.

In the end this is the APSC killer lens. Both for Canon and everyone else.
doubt it will do much. Sony has a super cheap kit lens too and that hasn’t done much to apsc sales
Slow process for sure. APSC really only existed because early on in digital the price difference between APSC and FF sensors was quite large. Now much less.
it also existed for birders- reach - getting more pixels on the subject
Good point, if one only is interested in that one thing. If one shoots birds and other stuff a high MP FF camera is more versatile.
last I checked these high mpxl FF cameras with high fps are very expensive
Yes. No real reason other than the market will bear that at the moment. I'm talking about something that is going to be a gradual evolution. This lens is a first step. Next will be FF cameras below $1K. Like I said in another post it will take many years but this lens is a clear sign that Canon knows where things are heading.
I gave $850 for my FF RP. But it will be many years before we get 100 MPXL in an RP body size for under $1K
 
I gave $850 for my FF RP. But it will be many years before we get 100 MPXL in an RP body size for under $1K
5 years. Not longer.
 
I gave $850 for my FF RP. But it will be many years before we get 100 MPXL in an RP body size for under $1K
5 years. Not longer.
it's not advantageous to them - they'll sell less glass -- with all that cropping power
5 years ago, nobody could even imagine a FF body for less than $1k. There was no EOS camera with a resolution of 26 MP at all. What is the current situation? Even Smartphones offer 100 MP resolution by now. How long can a camera maker deny that fact?

My 5 years are very, very pessimistic. It might go much faster.
 
I gave $850 for my FF RP. But it will be many years before we get 100 MPXL in an RP body size for under $1K
5 years. Not longer.
it's not advantageous to them - they'll sell less glass -- with all that cropping power
5 years ago, nobody could even imagine a FF body for less than $1k. There was no EOS camera with a resolution of 26 MP at all. What is the current situation? Even Smartphones offer 100 MP resolution by now. How long can a camera maker deny that fact?

My 5 years are very, very pessimistic. It might go much faster.
try putting your EF 85 f1.8 on a 100 mpxl camera - so much horrendous purple people eating fringing - it is unusable
 
try putting your EF 85 f1.8 on a 100 mpxl camera - so much horrendous purple people eating fringing - it is unusable
Even better for Canon. They will sell new glass. ;-)
 
I gave $850 for my FF RP. But it will be many years before we get 100 MPXL in an RP body size for under $1K
5 years. Not longer.
it's not advantageous to them - they'll sell less glass -- with all that cropping power
5 years ago, nobody could even imagine a FF body for less than $1k. There was no EOS camera with a resolution of 26 MP at all. What is the current situation? Even Smartphones offer 100 MP resolution by now. How long can a camera maker deny that fact?
As long as time will last. Cram even 1.000 or 1.000.000 Mp in a phone, and i am still not interested. Sorry!
My 5 years are very, very pessimistic. It might go much faster.
 
try putting your EF 85 f1.8 on a 100 mpxl camera - so much horrendous purple people eating fringing - it is unusable
Even better for Canon. They will sell new glass. ;-)
People are just getting over having to buy RF glass. They're not going to jump at the chance to buy glass for more MPs that they don't even need. Especially at the $1K body level.

I sold my A7R2 kit to get an EOS R. More MPs aren't everything for everybody.
 
Thank you for the helpful reply. I gather this not work in Servo AV which is what I need for moving birds. For this Servo AF case I will just have to use one of my adapted EF telephotos.
The trick... IMO is to use back button focus. I keep the camera in servo mode 90% of the time.
So, here is a scenerio.

Bird in the brush. Doesn't matter which camera you have it isn't always something that goes as you want, and overriding the system is definitely useful. Camera settings. Small AF point, servo mode, continuous.

1. Place AF point on the bird.
2. Press BBF to AF & half press shutter button.
3. Adjust exposure if needed (if I have time, and my settings are too far off in terms of exposure).
4. Take the shot.
This is the ideal scenerio.
Alternative (happens more than I like).

At step (2). Focus lands on a background of foreground object.


Case 1.
a. Let go of BBF, and immediately turn the focus ring to override the focus. As long as the camera is metering this is possible. As as BBF is not held down the camera is not doing AF and thus I can do MF.
b. Rack focus and fire off a burst. Point is to try to get at least one image in focus.


Case 2.

a. I press the button I have assigned to toggle between one-shot and servo.
b. Perform MF and do the same racking focus.


But why switch to one-shot? Because I have that set so that after initial focus is achieved (green box) if I keep the BBF pressed in, when I perform MF I get the magnified view. I find this useful for an animal that is not moving around too much. And it allows me to get critical focus.


The only reason why I like having an AF/MF switch though, is that when switched to MF then the focus assist kicks in (the 3 triangle thing). But in my experience the feed back it gives you is the same as if the camera as doing AF. But it is nice to have at times.
Sorry for the rant.
 
Last edited:

Keyboard shortcuts

Back
Top