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ScreensMatter · Jun 24, 2026

ctk said:
There is a lot of great used FF gear. But the implication that the only way into photography is through a new FF camera just isnt true. If anything that's gatekeeping. Id wager the vast majority of folks who started photography with a digital camera did not start on full frame.

I don't care about digital sensor sizes. But I am a true believer of 6x6 negative film

. What else has there really been to recommend on the low end for a new mirrorless camera? Around the same price class there has been the A6100, Z50, R50, E-M10 Mark IV and G-97. None of them are bad cameras, most of them use old tech. All the systems have enough lenses to get you by. I don't really know what to say about the current stat of all the systems except RF, they seem a bit on life support.

mangobutter · Jun 24, 2026

ive seen the 100-400L II value spike back up after some decline, after canon announced they stopped making them. ive gotten some good offers on mine from the big stores, but i hesitate to sell it cause it's so good. i use it on my 40mp x-t5 too with spectacular performance.

MISTAKENIDENTITY · Jun 24, 2026

Weeee!

DocInfoSci · Jun 24, 2026

neuroanatomist said:
Canon's spec is with an f/1.2 lens (without a DS coating), yes. But even something like –4 or –3 EV is really dark...say a landscape under a gibbous moon instead of a sliver of a moon.

Totally agreed — it's been a game changer for my 300 f/4 + 1.4x and 2x extenders in the PNW forests. Figured I'd throw that out there because a) you'd probably educate me if I were off (ha!) and b) people are trying to understand the impact of DOF preview impacts (probably more pertinent if the button is changed to a switch instead of a hold-down preview).

neuroanatomist · Jun 24, 2026

DocInfoSci said:
But that's for an f/1.2 aperture, right? Aperture limited scenarios, like lenses with a base f/4 or adding extenders, does reduce the performative effect, right? (As opposed to just stopping down, which the camera largely ignores when focusing.) Being pedantic, an R3's -7.5 EV for an f/1.2 lens would effectively become -4.0 if the attached lens is natively f/4 (7.5 reduced by ~ 3.5 stops penalty for the f/4 maximum aperture). That's not nothing, but it's there.

Canon's spec is with an f/1.2 lens (without a DS coating), yes. But even something like –4 or –3 EV is really dark...say a landscape under a gibbous moon instead of a sliver of a moon.

DocInfoSci · Jun 24, 2026

neuroanatomist said:
What do you mean by low light? AF sensitivity for current MILCs is below –6 EV (the R8 is –6.5 EV, for example). That light level is something like a 8 minute exposure at f/5.6, like shooting a landscape under a sliver of moonlight. In moderately dim light, when I stopped the 28-70/2 down to f/22, it opened the aperture to around f/11 for AF (video in a prior thread on the RF 45/1.2 discussing focus shift).

But that's for an f/1.2 aperture, right? Aperture limited scenarios, like lenses with a base f/4 or adding extenders, does reduce the performative effect, right? (As opposed to just stopping down, which the camera largely ignores when focusing.) Being pedantic, an R3's -7.5 EV for an f/1.2 lens would effectively become -4.0 if the attached lens is natively f/4 (7.5 reduced by ~ 3.5 stops penalty for the f/4 maximum aperture). That's not nothing, but it's there.

oten68 · Jun 24, 2026

Im honestly very excited for this camera, MPEX shipped two days ago and will arrive today. But it was deff very tricky from canon to release this after the R6 Mark iii and the C50, i think a lot of people would pick this one if they were all released at the same time.

PinholeR5 · Jun 24, 2026

Del Paso said:
Not really an issue, since in low-light situations the aperture usually stays fully open.

neuroanatomist said:
What do you mean by low light? AF sensitivity for current MILCs is below –6 EV (the R8 is –6.5 EV, for example). That light level is something like a 8 minute exposure at f/5.6, like shooting a landscape under a sliver of moonlight. In moderately dim light, when I stopped the 28-70/2 down to f/22, it opened the aperture to around f/11 for AF (video in a prior thread on the RF 45/1.2 discussing focus shift).

Thanks guys. Yes, clearly not an issue..

neuroanatomist · Jun 24, 2026

PinholeR5 said:
Using Exposure + DOF simulation will hurt low-light AF performance, won't it? I've switched to having Exposure + DOF simulation as the default setting on my cameras, but on occasion I'll switch it off in some low-light conditions (if I remember).

What do you mean by low light? AF sensitivity for current MILCs is below –6 EV (the R8 is –6.5 EV, for example). That light level is something like a 8 minute exposure at f/5.6, like shooting a landscape under a sliver of moonlight. In moderately dim light, when I stopped the 28-70/2 down to f/22, it opened the aperture to around f/11 for AF (video in a prior thread on the RF 45/1.2 discussing focus shift).

InternalRevenue · Jun 24, 2026

Long overdue, I’m still confused why this wasn’t Tamron first RF mount lens first since it has no true direct competitor from Sigma (the 18-50 trades stabilization and focal range for compactness). I no longer have interest in this lens since I have an R7 and Sigma 17-40mm f/1.8, but this will be a very compelling option for R100, R50/V, and R10 owners, especially those interested in handheld video.

Del Paso · Jun 24, 2026

PinholeR5 said:
Using Exposure + DOF simulation will hurt low-light AF performance, won't it? I've switched to having Exposure + DOF simulation as the default setting on my cameras, but on occasion I'll switch it off in some low-light conditions (if I remember). I also often use the camera in burst mode and that helps get good images, but is tedious in post.

I've read somewhere about possibly setting it to Exposure only and have DOF only when pressing the DOF button (which I currently have assigned to other functions), so the idea would be to focus then press the DOF button and then the shutter while still holding the DOF button. I haven't tried it, but seems cumbersome to me.

I rarelly, if ever, have issues with both at the same time, so it is more of a settings management topic I guess.

Curious to learn how others have managed the focus shift vs low-light settings.

Not really an issue, since in low-light situations the aperture usually stays fully open.

mb66energy · Jun 24, 2026

Nice addition to the endless sea of options but special in the standard zoom category!

Just learning to like the EF-s 15-85 for time lapses after understanding how to optimize focusing (manually, after each change of focal length is important!). It is a very sharp and contrasty lens and allows to use a variable ND filter adapter which is very convenient for video.
Maybe a good option if I need constant aperture by design for video zoom ops so I will reevaluate the need - the EF-S 15-85 goes from 3.5 to 5.6!

neuroanatomist · Jun 24, 2026

I did not get the email from Canon USA, but it's a legit issue and can be resolved by downloading the current version.

https://www.usa.canon.com/about-us/to-our-customers/cpa2026-005-vulnerability-remediation-for-eos-network-setting-tool

PinholeR5 · Jun 24, 2026

neuroanatomist said:
Not that I have noticed. The RF lens does exhibit mild focus shift, but only at magnifications over 1x and in any case, if your camera supports exposure + DoF simulation then focus shift is a non-issue because focusing is done with the lens already stopped down.

Del Paso said:
I am using DoF simulation, having heard of it a bit lately...
I works perfectly, focus is always where I want it to be.

Using Exposure + DOF simulation will hurt low-light AF performance, won't it? I've switched to having Exposure + DOF simulation as the default setting on my cameras, but on occasion I'll switch it off in some low-light conditions (if I remember). I also often use the camera in burst mode and that helps get good images, but is tedious in post.

I've read somewhere about possibly setting it to Exposure only and have DOF only when pressing the DOF button (which I currently have assigned to other functions), so the idea would be to focus then press the DOF button and then the shutter while still holding the DOF button. I haven't tried it, but seems cumbersome to me.

I rarelly, if ever, have issues with both at the same time, so it is more of a settings management topic I guess.

Curious to learn how others have managed the focus shift vs low-light settings.

rbwillnj · Jun 24, 2026

Did anyone else get this advisory from Canon about a Vulnerability in the Network Setting Tool? It looks legit but you always have to wonder if it's spam

Screenshot

Canon Advisory Screenshot 2026-06-24 104254.jpg

ISO64 · Jun 24, 2026

Where did you get the "schematic drawing" for last couple of lenses featured here? Previously, they looked real and made sense. Just look at this one: according to the illustration, all the lenses are positive, equally thick, equally spaced. Even my window panes show some variation. Is this AI slop?

Del Paso · Jun 24, 2026

neuroanatomist said:
Somehow? According to Canon, focus shift is part of the lens design...it's not going to 'somehow be resolved' for the lens itself. Two issues there...one, the person testing it doesn't know how to test for focus shift (hint: you don't take pictures of a flat subject), and two, as I pointed out above if the camera supports and is set to use DoF simulation, then AF is performed with the lens stopped down and focus shift doesn't happen. I suspect the latter is the 'resolution' that was reported (without that explanation or an understanding of it, seemingly).

I am using DoF simulation, having heard of it a bit lately...
I works perfectly, focus is always where I want it to be.

neuroanatomist · Jun 24, 2026

HMC11 said:
Based on forum members' testing shared in a thread from DPReview, it seems that the focus shift issue has somehow been resolved (https://www.dpreview.com/forums/threads/rf100mm-f2-8-l-macro-focus-shift-is-fixed-addressed.4771391/).

Somehow? According to Canon, focus shift is part of the lens design...it's not going to 'somehow be resolved' for the lens itself. Two issues there...one, the person testing it doesn't know how to test for focus shift (hint: you don't take pictures of a flat subject), and two, as I pointed out above if the camera supports and is set to use DoF simulation, then AF is performed with the lens stopped down and focus shift doesn't happen. I suspect the latter is the 'resolution' that was reported (without that explanation or an understanding of it, seemingly).

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