DZOfilm lenses - How to add SHIMs and back-focus (Canon C300 Mark iii - and others)

[@trimbleproductions9915]

You answered the exact question I had for my camera within the first 30 seconds, thank you so much, you have saved me hours of trial and error.

[@Combsfilms]

Anyone else with the Canon C300 MKIII use the recommended shims and not get parfocal? Struggling to find a solution and curious if anyone else had to use a different mixture of shims to achieve this.

[@MartinLisius]

Thank you for creating this video. It took me awhile to setup the DZOFilm Pictor 20-55 zoom lens for my RED Komodo camera with the standard Canon RF-EF adapter, but this is what I found. The following shims are required: .5, .1, .02, .05. With this combination, I was able to achieve parfocality. Hope this helps make it easier for any Komodo users. A side note... I'm returning the lens because the optical quality is not acceptable for my clients, at least the copy I have. There is significant reduction in sharpness and increase in color fringing in the corners in the larger apertures. The pros for the lens is it is parfocal once setup, and it does cover the RED Komodo 6K sensor well with very little falloff.

[@ericbranch4950]

I'm so confused. I don't have a .5, only .05. Was that a typo?

[@MartinLisius]

@@ericbranch4950 Hi Eric. It’s possible. I apologize. I no longer have that lens so can’t check. They do seem to have pretty good service. You may want to contact them for help. Good luck!

[@ericbranch4950]

@@MartinLisius Thank you

[@kylewalcott2374]

Thanks for the tips! I got the same number on the Scarlet Weapon .53 I did a .3+.1+.1+.03

[@marcwo]

My RED helium is .24 total. 5 shims. .1,.02,.02,.05,.05. Thanks for the how to.

[@SHOT4SHOTIMAGERY]

Thanks. That configuration worked for me as well. Red Helium 8k 🙏🏾

[@acooper1128]

Great you took the time to make this video! Thanks.

[@mglmedia]

Thanks for posting the video. For the C300 mk2 try 0.66 for the 20-55, and 0.7 for the 50-125. That worked for us.

[@iamjohn01]

I will try these numbers on my c300 mk2... and report back! Much appreciated!

[@hoondog100]

thanks for this video, extremely helpful

[@MrMoviePhoneEx]

I have a vespid cyber and was pulling my hair out trying to figure out the right combo. Then I used your formulation for the 300 and it worked perfectly. That said, I don’t know how you got that. Using DZO’s instruction I should have been taking shims away, not adding them… I spent at least 4hrs running in circles moving in increments at a time barely seemed to make a dent.

[@NOYBNOYB]

Woo hoo! You got it though? That’s awesome. They are great lenses but I almost didn’t buy them as I was worried about the shims. Glad you got it!

[@MrMoviePhoneEx]

@@NOYBNOYB yeah, I got it with the .53, it was dead on accurate for my c70, and I'm using the cyber 35mm via the .71 canon speed booster - so more adapters in the chain. DZO's chart and guides had me down around .41 and it didn't matter what direction I went, I was always missig critical focus by a few degrees. Anyway, your method worked, but my confidence isn't quite there for doing it again - Thank you for posting your video!

[@paulstevenson6661]

Cheers for the resources

[@iforssberg74]

Here is my experience with my two DZOFilm lenses mounted on a BM URSA Mini Pro G2 with EF mount. Picture Zoom 20-55mm = 0,02+0,03+0,03+0,03+0,05+0,1+0,3+0,3 = 0,86 Picture Zoom 50-125mm = 0,02+0,03+0,03+0,03+0,05+0,1+0,3+0,3 = 0,86 Hope that can help someone else reach their target faster on their lenses and camera bodies as I assume these figures can be a bit different even on the same camera model I use.

[@mattestarr]

Brand new URSA Mini Pro 4.6K G2. My Pictor Zoom 20-55mm required the same .86 achieved with .5 + .3 + .03 + .03. Thanks iSmack, didn't know where I should start but got the same results as you. This gorgeous parfocal lens now retains its focus throughout the zoom. Will pick up the 50-125mm at some point.

[@iforssberg74]

@@vik5959 I don't know, but I do believe you need to do the shimming process on each lens you have from DZO. It seems like the manufacturing of camera houses and lenses do actually differ a tiny bit making the shimming a bit different between different houses. Which means, you can't expect same shimming on one house to another.

[@boomshadows]

Not sure what is going on but I get 1.36 on both the 20-55 and the 50-125 pictor zooms on the Ursa mini pro G2. Seems there must be some serious inconsistency.

[@RipRecords]

@@mattestarr Are there supposed to be two .3's in the kit? Only seeing one... :(

[@RipRecords]

@@mattestarr ...or I think you got one too many .3's in your formula

[@FerLopezPaz]

Thanks for the pep talk. Got it done in an hour or so, but with a few interruptions. It is possible!

[@CrackstationFilms]

anybody know how many for the c70

[@NOYBNOYB]

I’m hoping someone answers this because I’m looking to get a c70 as well. -I can say that when I use the DZO lens to my Canon EOS-R (with rf to ef adapter) they stayed parfocal. I don’t know if that works with other Canon cameras but it was a nice surprise and made them easy to swap! If no one answers and you figure it out please share! Thx 👌

[@CrackstationFilms]

@@NOYBNOYB I got it set at .3 /.1/.1/.1

[@georgeg6036]

@@NOYBNOYB I didn't add or remove any shims for my C70 with 20-55 and an rf to ef adapter. I'm gonna do a test on it though.

[@pmedia8991]

i have been trying to get the dzo 35-80mm back focus fixed for weeks with no luck. i have a BM ursa mini 4.6 g2, and at this point I have removed all of the shims, on the lens including the ones that came with the lens. With no shims, i'm at 11 on 35mm and 7 on 80mm. according to the dzo website, if the 35mm number is greater than the 80mm number, then I still need to subtract, but there's no shims left to take off. i have tried adding up to .6mm worth of shims in .01mm increments with no luck. is there something wrong with the lens, or is there something I am just not getting? btw, the 18-35 dzo backfocus was incredibly easy to adjust, so i know its not the camera.

[@dkhart]

Hey guys! What about C200? Thanks a lot for the video by the way!!! Great job!

[@NOYBNOYB]

Thanks again - did you ever get the number of shims for the c200?

[@dkhart]

NOYB NOYB Yes I did actually! But I have to check the paper 📄

[@ricardobirnbaum]

@@dkhart If you can share that number that would be great. Thanks

[@dkhart]

Ricardo Birnbaum Sure! I found the paper:) 20-55mm: 0.61 50-125mm: 0.88 That looked the best to my eyes. Hope it helps or at least get you in a good starting point! All the best 👍🏻

[@vsproductions894]

Hey what is the Shim number for the blackmagic 6k pro. Dzo Pictor both of them Thank you in advance to whom may help me

[@OpexFilms]

Did you find out what worked in the end?

[@joshualukebamford]

0.34 for my black magic Ursa G2

[@iforssberg74]

Did you apply same amount on both lenses on your URSA G2?

[@toddlagoon8442]

Does anyone have Z cam -F6?? I really can use the help thanks!

[@marcwo]

The previous .24 number is for the 20-55. The 50-120 is .65 total. .3,.3,.05

[@stephentedeschi1378]

Your calculation of 6 shims to come up with .53, did that include the prime shim of .5 so a total of 1.03? Or are you saying you removed the .5 plat and and used 6 shims that created a .53, and if so why not just use the .5 and .03?

[@NOYBNOYB]

Sorry for the late reply. Yes there are a few ways to get to the same number. It only included the exact shims listed. I thought of taking them all off and getting the number with the fewest shims possible but I thought I’d skip unscrewing all those dang screws.

[@FilmmakerTery]

Anyone changed shims on the Pictor Zoom for the blackmagic pocket 4k?

[@jackieronimo8112]

Where is everyone getting these shims? I've looked all over and the only ones from DZO I can find are pre-order only. Can you use shims that are not DZO for this?

[@NOYBNOYB]

The shims come partially IN the lens and then there is a little screw off container of shims in the box. I would guess they are available for order because they can be bent if swapped out repeatedly.

[@jackieronimo8112]

@@NOYBNOYB weird none of my boxes have any shims. Looking all over the internet and can only find the ones for pre-order. I'm probably just going to reach out to DZO support

[@cypresssoundz1223]

nice video.. thanks .. Has anyone use the 20-70 bmpcc 4k ? If so... What shim number ? thank you

[@germanoassuncao5883]

Anyone know for the Sony FX6 or FX3?

[@florineabrassart8486]

Hello, when do i have to add or remove shims ?

[@NOYBNOYB]

Hello Florine! When you first buy/rent the lenses they will come with a few shims on the base of the lens and a few more shims in the case. Depending on which brand/model camera you have you’ll need to add/remove shims to set the back focus. The goal is the make the lens parfocal. So essentially the first time you put the lens on the camera you will add/remove shims and calibrate them (and you won’t need to do it again for the same camera).

[@robertcastaldo8952]

Has anyone had problems with these EF mounts not locking into position? These mounts won't lock on any of my canon cameras: C100 mkII, 90D and 70D

[@NOYBNOYB]

I did have some trouble with the ef to rf converter (was a little stiff) when I put this on the EOS-R

[@robertcastaldo8952]

@@NOYBNOYB Do you have EF mount on your C300 MkIII. If so did the lens lock into position? That's the problem I am having. It does not lock securely so the lense can just twist off without pressing the release button. BTW The 20-55 used .53 shims on my C100 MkII. I think that is what you said worked on your lens.

[@NOYBNOYB]

@@robertcastaldo8952 did you figure anything out?

[@video631king]

I had struggled to get it to lock onto my 5DMii, and 6D. Then when it finally attached it looked like I was peering through the bat signal. When I used it on my r6 with lens adapter it fit with ease but, I had the EXPECTED vignetting. I’m going to wait until my ursa comes in the mail with the ef mount. And I’ll take it from there, if there is issues I’m contacting them.

[@einfilm]

anybody the shims for red Komodo x with standard canon rf->ef adapter?

[@alexmasalcoberro]

Anyone know how many shims We need for C70?

[@Perutvonlinecom]

Does anyone know what the shim count is on the Ursa Mini Pro 4.6K G1 for the 20-55 mm.?

[@hamjipark1]

Is it correct for bmpcc 6k?

[@NOYBNOYB]

The process is the same but I would guess that the BM will have a different number of shims. - you could start with the same number the canon takes and then adjust from there.

[@malachigerard]

Red Gemini, Cleanest i could get was .607

[@ehers7920]

Red on pl? Please, tell me what shims u use?

[@timmichalak6956]

Does anyone know what the shim count is on the Pocket 6K for both the 20-55 and the 50-125? I can't figure it out for the life of me.

[@OkItsJustSean]

I got .77 for the 20-55. Try that and see if it works.

[@echobendfilms8428]

Z CAM E2-S6: 0.1+.05+.03

[@unclejezza]

In case you dont want to be stilll watchin this after 1hr, set playback speed @2x so he doesnt sound really (reaally) stoned. You're welcome.

[@NOYBNOYB]

I’m sorry you didn’t find it helpful. It was my first KZbin video. Just wanted to help others who might not have done this before (like me). I’ll try to shorten future videos. Thanks for the feedback.

[@anniewarren]

I don’t understand the trolling. This video was really helpful! Thanks NOYB.

[@unclejezza]

This isn’t trolling 😂 this is a helpful tip to people watching the clip. Set playback speed to 2x and he sounds normal. Try it! Content is good - delivery = too slow!

[@NOYBNOYB]

@@unclejezza it was too slow. I was reading off a tele-prompter with a set speed -It was so slow I have time to look off to the left and right to pretend I’m not reading that. Lol. Thx for the feedback from all. I’m learning!

[@jworthamvideoproductions823]

Does anyone know how many shims to add for the Z Cam E2 S6 camera using DZOfilm Lens 20-55mm? HELP! [EF mount]

[@toddlagoon8442]

Any luck?! This shim situation is ridiculous can't seem to find anything for z cam e2-F6?

[@martinn081]

Red Komodo X 0.67

[@einfilm]

wrong.