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Klendothir · Mar 1, 2026

DocInfoSci said:
DLO applies corrections that go beyond stretching and vignetting. The lens’ field curvature can be corrected; astigmatism and coma can be addressed; and both axial and spherical chromatic aberrations can be reduced. Various other lens imperfections due to material, light bending, diffusion in air gaps, etc. can be adjusted as Canon enables. The exact corrections depend on what Canon provides in the data and the age of the DLO interpreter (in-camera vs Mac/PC hosted software, camera model, etc.) so the effect varies between contexts, but essentially Canon engineers provide data about the lens’s design and DLO calculates how the image should be adjusted based on how the light does travel through the lens and therefore what should be presented in a more ideal situation. The raw file itself isn’t modified, insomuch as I am aware, but metadata is added to the raw file for DLO software to use, so while camera bodies are limited to JPEGs and (since models like the R5 and R6) HEICs, desktop systems can also produce TIFFs.

One downside for in-camera corrections is that it takes CPU power and time to do the work, which slows down how fast the HEIC or JPEG files can be produced. I use max DLO in my R6 and have never noticed an issue with animals running about and EF lenses with their limited AF drive in play, but I read that some people do notice this difference and don’t like it — but even then those people could just process the raws on a computer as part of a more advanced image processing workflow.

And yeah, as people mention Canon’s desktop DPP software is showing its age so there’s a bunch of grumbling about at least modernizing the software or passing the capability on to third parties. I just use it to get a DLO refined TIFF that I then edit somewhere else.

As I mentioned, Canon's NnIP produces .CR3 files for further edit, that allows to avoid the TIFF "detour"

Sporgon · Mar 1, 2026

DocInfoSci said:
DLO applies corrections that go beyond stretching and vignetting. The lens’ field curvature can be corrected;

How can a lens’s field curvature be corrected in post processing software ?

Sporgon · Mar 1, 2026

Ah ! I now know what the difference is between Leica ‘s PGM glass and Canon’s GMo. About $10,000 !

dolina · Mar 1, 2026

Del Paso said:
If only they could make their 50mm f/2 Apo Lanthar in RF mount. I've tested the Leica M version, as sharp as a Japanese katana!

I'm fairly certain they will eventually get around to making the APO-LANTHAR 50 mm F2.0 on RF mount.

The Voigtländer RF lenses released so far are

- Nokton 50mm f/1.0 Aspherical last October 2023
- Nokton 40mm f/1.2 Aspherical last January 2024
- Nokton 75mm f/1.5 Aspherical last April 2024
- Nokton Classic 35mm f/1.4 last February 2026
- Portrait Heliar 75mm f/1.8 last February 2026

Del Paso said:
You say the 50mm f/1,0 is under $1050 in Tokyo, is at BIC, Yodobashi or MAP? (I'll be there next October...)

I have a friend in Nagoya right now who will pick up the カメラレンズ NOKTON 50mm F1 Aspherical RF-mount [キヤノンRF /単焦点レンズ] from Bic Camera (JR Gate Tower).

Price Breakdown:

- SRP (Standard Price): ¥197,780

- Tourist Tax-Free Price (10% OFF): ¥179,800

- FINAL PRICE w/ 7% Coupon: ¥167,214

Sadly it isn't as cheap or as straightforward as Map Camera in Tokyo's ¥161,819. That's nearly 42% cheaper than MSRP from 37 months ago. By comparison someone on FM's selling their used copy for $1029?

If that falls through I have another friend going to Fukuoka this October. But with the Yen so weak maybe I'll go with sooner than later!

These are other bodies/lenses that I'm interested in & their prices are in USD & without sales tax

2024 Canon R1

- US: $6,799 (BHPhoto)
- JP: $5,387.52
- HK: $4,700

April 2026 ZEISS Otus ML 35mm f/1.4

- US: $2,299 (BHPhoto)
- JP: $1,997.45
- HK: $x,xxx.xx

October 2025 ZEISS Otus ML 85mm f/1.4

- US: $2,999 (BHPhoto)
- JP: $1,997.45
- HK: $2,549.50

May 2025 ZEISS Otus ML 50mm f/1.4

- US: $2,499 (BHPhoto)
- JP: $1,535.17
- HK: $2,091.50

2022 RF 1200mm f/8L IS USM

- US: $22,699 (BHPhoto)
- JP: $16,718.40
- HK: $18,748.10

2022 RF 800mm f/5.6L IS USM

- US: $18,799 (BHPhoto)
- JP: $14,222.25
- HK: $13,914.4

2023 RF 28mm f/2.8 STM pancake

- US: $329 (BHPhoto)
- JP: $255.42
- HK: $181.10

Del Paso · Mar 1, 2026

P-visie said:
Megadap have announced their Leica M to RF autofocus adapter, so you can mount the Leica M version to RF.
See: https://petapixel.com/2026/02/26/megadap-unveils-worlds-first-leica-m-to-canon-rf-autofocus-adapter/

Very very interesting! As soon as they become available, I'll order one.
Thanks a lot!
Edit: They should sell in May according to Megadap.

DocInfoSci · Mar 1, 2026

alFR said:
If DLO applies lens corrections (it requires lens data so I assumed it did) aren’t you effectively applying the lens profile twice by doing this? Or does DLO not do the “standard” distortion corrections at all but something different? It’s hard to tell from the description on Canon’s site.

DLO applies corrections that go beyond stretching and vignetting. The lens’ field curvature can be corrected; astigmatism and coma can be addressed; and both axial and spherical chromatic aberrations can be reduced. Various other lens imperfections due to material, light bending, diffusion in air gaps, etc. can be adjusted as Canon enables. The exact corrections depend on what Canon provides in the data and the age of the DLO interpreter (in-camera vs Mac/PC hosted software, camera model, etc.) so the effect varies between contexts, but essentially Canon engineers provide data about the lens’s design and DLO calculates how the image should be adjusted based on how the light does travel through the lens and therefore what should be presented in a more ideal situation. The raw file itself isn’t modified, insomuch as I am aware, but metadata is added to the raw file for DLO software to use, so while camera bodies are limited to JPEGs and (since models like the R5 and R6) HEICs, desktop systems can also produce TIFFs.

One downside for in-camera corrections is that it takes CPU power and time to do the work, which slows down how fast the HEIC or JPEG files can be produced. I use max DLO in my R6 and have never noticed an issue with animals running about and EF lenses with their limited AF drive in play, but I read that some people do notice this difference and don’t like it — but even then those people could just process the raws on a computer as part of a more advanced image processing workflow.

And yeah, as people mention Canon’s desktop DPP software is showing its age so there’s a bunch of grumbling about at least modernizing the software or passing the capability on to third parties. I just use it to get a DLO refined TIFF that I then edit somewhere else.

P-visie · Mar 1, 2026

Del Paso said:
If only they could make their 50mm f/2 Apo Lanthar in RF mount. I've tested the Leica M version, as sharp as a Japanese katana!
You say the 50mm f/1,0 is under $1050 in Tokyo, is at BIC, Yodobashi or MAP? (I'll be there next October...)

Megadap have announced their Leica M to RF autofocus adapter, so you can mount the Leica M version to RF.
See: https://petapixel.com/2026/02/26/megadap-unveils-worlds-first-leica-m-to-canon-rf-autofocus-adapter/

Klendothir · Mar 1, 2026

alFR said:
If DLO applies lens corrections (it requires lens data so I assumed it did) aren’t you effectively applying the lens profile twice by doing this? Or does DLO not do the “standard” distortion corrections at all but something different? It’s hard to tell from the description on Canon’s site.

It doesn't apply the "standard" distortion corrections. You have to activate the correction profile in LrC to get rid of the distortions..

alFR · Mar 1, 2026

Klendothir said:
Second image is LrC with the appropriate lens profile actived but denoise and DLO applied via NnIP beforehand.

If DLO applies lens corrections (it requires lens data so I assumed it did) aren’t you effectively applying the lens profile twice by doing this? Or does DLO not do the “standard” distortion corrections at all but something different? It’s hard to tell from the description on Canon’s site.

Del Paso · Mar 1, 2026

dolina said:
3 years after announcement a brand new copy of the 50mm f/1.0 is now under US$1050 vs the 7.5yo RF 50mm f/1.2 @ under US$1,900 for tourists in Tokyo.

I have ZEISS Planar f/1.4 ZE and used the Focus Guide (Green Box) with it with great satisfaction and success.

Below are 3rd party manual focus lens series that support Focus Guide

EF mount

- Zeiss Classic ZE Series (Planar/Distagon)
- Zeiss Otus
- Zeiss Milvus Series (Original Lineup)
- Samyang/Rokinon XP (Premium MF)

RF mount

- Voigtländer
- Zeiss Otus ML

If only they could make their 50mm f/2 Apo Lanthar in RF mount. I've tested the Leica M version, as sharp as a Japanese katana!

You say the 50mm f/1,0 is under $1050 in Tokyo, is at BIC, Yodobashi or MAP? (I'll be there next October...)

chik0240 · Mar 1, 2026

This is exactly why I am still using exclusively EF lens collections with the R5 II... technically the RF with profile is technically superior, but then the not-applied version are too far off from a normal lens it's almost always required to be used, which, makes almost all lens character-less, and those photos are often more boring...

TexPhoto · Mar 1, 2026

Received my 7-14mm On Friday. Shot this on Sat Morning. First photo with the new lens.

Old Man FL/FD · Feb 28, 2026

justaCanonuser said:
A classic waiste-level finder is much more useable e.g. in street photography if you want to shoot in a sort of "stealth" approach so people don't necessarily notice that you are taking photographs and don't start their posing (for boring results).

I just flip up the rear LCD screen on my G7X III to get a waist-level finder. It's bright enough.

ISv · Feb 28, 2026

antonn said:
Accipiter nisus, R1/R1/R52 + RF600/4

View attachment 228157
View attachment 228158
View attachment 228159

The last one is a great to my criteria, only that net is destructing the photo!!

ISv · Feb 28, 2026

antonn said:
Accipiter nisus, R1/R1/R52 + RF600/4

View attachment 228157
View attachment 228158
View attachment 228159

Canon Rumors said:
This was shot incorrectly, but I wanted to give ISO 25600 a shot at 1/64000 in a pretty dark scene. This should not have been F4 as the wings aren't in focus. Even with movement, the shutter speed should show more of a freeze. There's noise, but it's pretty well controlled and would work for a smaller print.

There is a crop (obviously for the square ratio). The vertical pixels came out at 3118 from 4000px.

View attachment 228111

Green-crowned Brilliant Hummingbird • Colombia

EOS R1 • RF 600 F4 L IS USM
1/64000 • F4.0 • ISO 25600

Why do you need the wings in focus?! That's not the action that you see! Some cliches are really kind of nonsense... (according to my understanding)! If you personally see that wings in real life "frozen" in the frame (in that case honestly I will ask myself if you are not a kind of superhuman) than you feel free to freeze the action as much as you want!

danfaz · Feb 28, 2026

Click said:
I love the atmosphere that comes across in your photo.. Nicely done, danfaz.

Thanks, Click! I do, too, even with all the distractions.

Ozarker · Feb 28, 2026

Del Paso said:
Unlike all these Canons, Sonies and Nikons, Pentaxes are boutique cameras for the discerning elite!

Click · Feb 28, 2026

foda said:
Male Purple-bibbed Whitetip seen while birding at the Avistamiento de Aves Doña Dora, Colombia, November, 2025.

R5MkII RF200-800mm

View attachment 228181

Another excellent shot. Nicely done, Norman.

ISv · Feb 28, 2026

MSH411 said:
View attachment 228132

View attachment 228133 View attachment 228134 View attachment 228135 View attachment 228136

After closer look my best choice is the the #3!!! It's great photo but the reason to put it as the best is because I'm not sure what actually I'm looking on: Fan-tailed Raven (Corvus rhipidurus) or Dwarf Raven (Corvus edithae)! I like bird puzzles but this one (with that photo!) is much above my knowledge

! I'm not very sure it may not pop-up like something else (low probability but it's there!!!).

foda · Feb 28, 2026

antonn said:
Accipiter nisus, R1/R1/R52 + RF600/4

View attachment 228157
View attachment 228158
View attachment 228159

Beautiful series of photos. Was this at a hide/feeding station?

foda · Feb 28, 2026

Male Purple-bibbed Whitetip seen while birding at the Avistamiento de Aves Doña Dora, Colombia, November, 2025.

R5MkII RF200-800mm

David - Sydney · Feb 28, 2026

m4ndr4ke said:
Lenses that cost 4k, 6k 10k are absolute professional tools that you see on the sidelines at stadiums, paired with the highest end bodies, because that’s who they’re designed for. Amateurs are not even a consideration on the development of such products.

"Professional tools" for sure but there is a growing segment of cashed up amateurs prepared to spend a lot of spare cash on the best.
All of the advantages for professionals would also apply to amateurs (weight, size etc) but without the need to financially justify the cost to anyone.

I don't make a cent from my photography but still own 2 FF bodies and 6 L lenses. I might not be able to justify (in my head) a $12k lens but I certainly know the replacement cost of my gear from my annual global insurance policy which runs @ 2.7% premium to replacement cost.
I still have GAS for the 20/1.4 and 14/1.4 though. Maybe one day when they are discounted and I have a workshop/trip to "justify" the purchases

ISv · Feb 28, 2026

MSH411 said:
View attachment 228132

View attachment 228133 View attachment 228134 View attachment 228135 View attachment 228136

I'm with Click: not because he is a friend but because these two are really the best (out of very good...)!

dolina · Feb 28, 2026

3 years after announcement a brand new copy of the 50mm f/1.0 is now under US$1050 vs the 7.5yo RF 50mm f/1.2 @ under US$1,900 for tourists in Tokyo.

Del Paso said:
Sadly, this aid works only with lenses equiped with electronic contacts, like for example Zeiss' ZE Classic lenses.

I have ZEISS Planar f/1.4 ZE and used the Focus Guide (Green Box) with it with great satisfaction and success.

Below are 3rd party manual focus lens series that support Focus Guide

EF mount

- Zeiss Classic ZE Series (Planar/Distagon)
- Zeiss Otus
- Zeiss Milvus Series (Original Lineup)
- Samyang/Rokinon XP (Premium MF)

RF mount

- Voigtländer
- Zeiss Otus ML

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