p.2 #1 · SHOTEN focus confirmation adapter for Leica M to Canon RF
Shoten is on the way to me, alas just saw this on YouTube posted an hour ago and seems an autofocus adapter is coming in May from a different manufacturer.
p.2 #3 · SHOTEN focus confirmation adapter for Leica M to Canon RF
tom in mpls wrote:
Wait. What? Do I understand this correctly?
There are adapters that allow Leica M lenses to autofocus on a canon R body?
The Shoten adapter is manual focus but because of the electronic RF contacts, actives Canon’s very good manual focus aid.
The video above is of a different adapter that will facilitate AF, which will be interesting to see if it lands without opposition from Canon. Maybe it’s different enough from 3rd party AF lenses that Canon will ignore it. Wishful thinking?
p.2 #5 · SHOTEN focus confirmation adapter for Leica M to Canon RF
I think they are further ahead than we might expect. The Leica Rumours from 2024 was a picture taken by ShotenKobo whoever that might be. Who knows if that person had access to an early prototype.
The YouTube video is from Megadap's You Tube Channel and on Megadap's website it is pictured. The YouTube description is where is says Coming Soon in May.
Seeing it on both the manufacturers website and YouTube channel indicates IMO that they are closer to releasing the product assuming no major hurdles are left to overcome.
p.2 #6 · SHOTEN focus confirmation adapter for Leica M to Canon RF
Just got the Shoten's version yesterday. It worked flawlessly as advertised. I believe the adapter is made in China by Boryoza. Anyway, IMHO, for those who use the latest Canon EOS R series camera and M mount lens, this adaptor is surely a must buy.
p.2 #7 · SHOTEN focus confirmation adapter for Leica M to Canon RF
I had to cancel my order because the seller said it wasn't available yet and I'd have to wait a long time. Now I'm not sure whether to wait for this megap.
I use a lot of leica lenses (voigtlander) with Canon R5. It is my style.
I've tested many adapters. Since I shoot at longer exposures, the adapter's tightness is crucial. The Leica M mount is weak in this regard, especially the metal version. Here's a video of various tests.
It's best if the adapter has a collar. Then the left light won't get in. That's why the 7artisans macro was the best, because has a little a collar. However, the 7artisans, due to its adjustable size, had a bit of loose. Now I've made a collar around the adapter for a standard Shoten adapter, and it works fine. I'll post a picture tomorrow to show how it smooths out.
What about the Shoten adapter you bought? How's the loose?
p.2 #10 · SHOTEN focus confirmation adapter for Leica M to Canon RF
rscheffler wrote:
Looking forward to your feedback about it.
Arrived today, spent 1/2 hour this evening with it on my R5. Attached my 50 Lux, 90 APO and 135 APO. Only focused at 15 feet or less and all 3 were dead on using the triangles.
Selecting which lens profile was easy. Three taps on the depth of field button and the Fstop on the R5 changed to F7.1. Change the Aperture on the camera body to the match the predefined lens identifier in the Shoten instruction page. For 50 lux F11, 90 APO F14 and 135 APO I used F22. You can easily change the description for each of the predefined lens identifiers that is stored in the adapter. Once you had the corresponding F-Stop on the camera to match the correct description tap the depth of field button again to register the lens that you were using in the EXIF.
***[Update: Disregard comments on over exposed I was previewing with the screen setting at 7]*** Only a couple were over exposed.
Updating the list of lens identifiers was easy to do. I attached the included cable to the computer. The attachment for the adapter side is magnetic and will only go on one way. Once attached to my laptop (MacBook Intel) I could open the folder that has 2 files, read me which shows the hardware and software version and Lens-Par file which has the 10 predefined lens identifiers. I was able to easily make a change which updated the file instantly and created another file sort of a backup but it was deleted in quick order, so I wouldn't call it a backup file. The one strange thing when I was down updating the file when I went to eject the adapter from my MacBook, it ejected but then came back up right away, thus I had to just disconnect the adapter and get the Mac warning message for not ejecting.
Although not a field test I like what I saw thus far, even with the quirks I experienced. Next I want to get outdoors and test for various distances and also as you suggested attach an FD lens to my FD to M adapter and attach it to the adapter, I think it will work. I just need to find some free time.
p.2 #12 · SHOTEN focus confirmation adapter for Leica M to Canon RF
rscheffler wrote:
Thanks for the update. That seems like pretty quick delivery and sounds promising. Any customs clearance issues coming into Canada?
Fast delivery, It was at the dealer for 1 day once DHL's partner picked up the adapter from dealer it was on a plane overnight Japan to Cincinnati to Calgary. DHL informed me last night of $27.06 CDN for customs fees and clearance. I paid it through their online portal right away so this morning it breezed through customs.
One glitch I forgot to mention when I switched the lens identifier to 90 APO for whatever reason it changed the EXIF to 90mm for focal length but kept the lens description as Leica 50mm F1.4. It only did that once all other changes switched smoothly.
p.2 #13 · SHOTEN focus confirmation adapter for Leica M to Canon RF
burningheart wrote:
Arrived today, spent 1/2 hour this evening with it on my R5. Attached my 50 Lux, 90 APO and 135 APO. Only focused at 15 feet or less and all 3 were dead on using the triangles.
Selecting which lens profile was easy. Three taps on the depth of field button and the Fstop on the R5 changed to F7.1. Change the Aperture on the camera body to the match the predefined lens identifier in the Shoten instruction page. For 50 lux F11, 90 APO F14 and 135 APO I used F22. You can easily change the description for each of the predefined lens identifiers that is stored in the adapter. Once you had the corresponding F-Stop on the camera to match the correct description tap the depth of field button again to register the lens that you were using in the EXIF.
***[Update: Disregard comments on over exposed I was previewing with the screen setting at 7]*** Only a couple were over exposed.
Updating the list of lens identifiers was easy to do. I attached the included cable to the computer. The attachment for the adapter side is magnetic and will only go on one way. Once attached to my laptop (MacBook Intel) I could open the folder that has 2 files, read me which shows the hardware and software version and Lens-Par file which has the 10 predefined lens identifiers. I was able to easily make a change which updated the file instantly and created another file sort of a backup but it was deleted in quick order, so I wouldn't call it a backup file. The one strange thing when I was down updating the file when I went to eject the adapter from my MacBook, it ejected but then came back up right away, thus I had to just disconnect the adapter and get the Mac warning message for not ejecting.
Although not a field test I like what I saw thus far, even with the quirks I experienced. Next I want to get outdoors and test for various distances and also as you suggested attach an FD lens to my FD to M adapter and attach it to the adapter, I think it will work. I just need to find some free time. ...Show more →
I got my adapter just now and really appreciate your comments, because the Chinese manual is beyond my language skills.
I experienced several times now, with different lenses, that the MF display in the camera doesn't get activated when I turn the focus ring on the lens. Do you know if that's because I've set the helicoid ring wrong (I have no idea what the default is for that ring). Or is it because the camera doesn't always register the activity of the adapter?
Just wondering if I'm doing something wrong or if my adapter has an issue.
EDIT: I do think that when the camera doesn't see enough contrast, it just doesn't activate the MF function. Not 100% sure.
p.2 #14 · SHOTEN focus confirmation adapter for Leica M to Canon RF
I haven't used the helicoid ring, I have left it in place for normal shooting not for closeups.
I do find that after the 3 pushes to engage the F7.1 and then moving the camera aperture to the matching lens identifier ie F14 for 90 APO that when I push the Depth of Field button that sometimes I had to press and hold longer than just a quick press or I had to press a 2nd time as the 1st one didn't seem to engage.
Onething I found is once MF display is engaged I can change the camera aperture but it would only have a range of F7.1 to F22 and if you opened it up more (ie going from F22 to F11 it would let less light in thus the final result is a darker image). But one does not need to change the on camera aperture you just set the aperture on the lens.
Otherwise the MF display always came up for me though sometimes I had to start focusing to recognize I had the MF display active.
As to the manual I rewatched the videos a few times and then did some guess work based on the little images on the instruction sheet. The changing of the descriptions of lenses was tense especially when I saw the temporary backup appear and disappear. They should include a full English version as there is sections ie. 50mm 0.95 that I have no idea what they are explaining.
I am not sure on the images of F1.4 and F1.6 prior to engaging with the 3 taps because after I used my APO 90 I couldn't get F1.4 and F1.6 it gave me F2 and F 2.2 but it worked just the same.
p.2 #15 · SHOTEN focus confirmation adapter for Leica M to Canon RF
burningheart wrote:
I haven't used the helicoid ring, I have left it in place for normal shooting not for closeups.
I do find that after the 3 pushes to engage the F7.1 and then moving the camera aperture to the matching lens identifier ie F14 for 90 APO that when I push the Depth of Field button that sometimes I had to press and hold longer than just a quick press or I had to press a 2nd time as the 1st one didn't seem to engage.
Onething I found is once MF display is engaged I can change the camera aperture but it would only have a range of F7.1 to F22 and if you opened it up more (ie going from F22 to F11 it would let less light in thus the final result is a darker image). But one does not need to change the on camera aperture you just set the aperture on the lens.
Otherwise the MF display always came up for me though sometimes I had to start focusing to recognize I had the MF display active.
As to the manual I rewatched the videos a few times and then did some guess work based on the little images on the instruction sheet. The changing of the descriptions of lenses was tense especially when I saw the temporary backup appear and disappear. They should include a full English version as there is sections ie. 50mm 0.95 that I have no idea what they are explaining.
I am not sure on the images of F1.4 and F1.6 prior to engaging with the 3 taps because after I used my APO 90 I couldn't get F1.4 and F1.6 it gave me F2 and F 2.2 but it worked just the same....Show more →
I have to play around with it more. When I just mounted the adapter and didn’t press the DoF button, I only could get f/1.4 and f/1.6.
p.2 #16 · SHOTEN focus confirmation adapter for Leica M to Canon RF
Tried it some more. Found that every time the camera goes into sleep mode, it resets the aperture, so I had to constantly set it back to the correct aperture to match the lens.
p.2 #17 · SHOTEN focus confirmation adapter for Leica M to Canon RF
So, I've tried the adapter now with several lenses and I'm not happy, but I don't know what's going on.
The focus works fine. No issues there.
I find it annoying that I have to reset the aperture to have the camera put the right lens in EXIF data annoying, but can live with it for slow work.
What I absolutely don't understand, though, is how the camera metering reacts to different lenses and what's going on.
My one Leica M lens, the 28mm Elmarit, works without issues. I adjust the aperture on the lens, leave the aperture on the camera at the setting for the EXIF data, and the camera (in M mode) adjusts my ISO to give me a correct exposure at the chosen aperture on the lens. The preview in the EVF and the histogram match before and after the image is taken.
On my Voigtlander and Zeiss M lenses, however, the metering goes completely haywire. When setting up for the shot, the EVF and the histogram behave as expected, showing a balanced image, but after the picture is taken both the EVF/LCD and the histogram are overexposed.
Since there is no communication between the lens and the adapter but only between the adapter and the camera, I have no clue what causes this discrepancy. It does, however, make this adapter pretty much useless other than with my Leica lens.
p.2 #18 · SHOTEN focus confirmation adapter for Leica M to Canon RF
johnvanr wrote:
So, I've tried the adapter now with several lenses and I'm not happy, but I don't know what's going on.
The focus works fine. No issues there.
I find it annoying that I have to reset the aperture to have the camera put the right lens in EXIF data annoying, but can live with it for slow work.
What I absolutely don't understand, though, is how the camera metering reacts to different lenses and what's going on.
My one Leica M lens, the 28mm Elmarit, works without issues. I adjust the aperture on the lens, leave the aperture on the camera at the setting for the EXIF data, and the camera (in M mode) adjusts my ISO to give me a correct exposure at the chosen aperture on the lens. The preview in the EVF and the histogram match before and after the image is taken.
On my Voigtlander and Zeiss M lenses, however, the metering goes completely haywire. When setting up for the shot, the EVF and the histogram behave as expected, showing a balanced image, but after the picture is taken both the EVF/LCD and the histogram are overexposed.
Since there is no communication between the lens and the adapter but only between the adapter and the camera, I have no clue what causes this discrepancy. It does, however, make this adapter pretty much useless other than with my Leica lens.
Just to understand, if you set a manual exposure that you know should be correct, such as a Sunny f/16 combination in direct sunlight, is the exposure correct?
@burningheart to clarify, you have so far used it on the R5, or R5II?
p.2 #20 · SHOTEN focus confirmation adapter for Leica M to Canon RF
rscheffler wrote:
What camera?
Just to understand, if you set a manual exposure that you know should be correct, such as a Sunny f/16 combination in direct sunlight, is the exposure correct?
@burningheart@ to clarify, you have so far used it on the R5, or R5II?
R5.
I set the camera to M, but with auto ISO. Exposure simulation is on and the histogram shows in the EVF.
I use the aperture on the camera to set the exit data for the adapter and then leave that untouched.
I then use the aperture ring on the lens to take one picture wide open and one at the smallest aperture. No matter which lens I use (Leica 28 Elmarit; VL 50/2, VL 75/1.5 and Zeiss 50/1.5), the exposure simulation show and histogram show a correct exposure, as the ISO adjusts to the settings.
But after the image is taken, only the Leica exposure is indeed correct and matches the pre-release image and histogram. The rest is overexposed, by a lot in the wide open aperture and a little in the smallest apertures.
I’ve also sent a message to the manufacturer describing this issue.
