wait. did I miss something?Is there not a sample of an image with RB67? I watched the whole video to see it.
@user-zu8nc9rc9k
2 жыл бұрын
Nice video. A lot of people get confused when adapting lenses. You’re only changing the field of view and not the focal length. A 50mm is a 50mm no matter what camera format you put it on. It doesn’t magically change so you have the qualities of a longer lens.
@graham_white
2 жыл бұрын
right, its just the amount of the glass your using/ cropping depending on the format of each.
@TrilobitesRTasty
Жыл бұрын
I’m still confused. I bought a $200 tilt shift adapter…and placed a Mamiya 645 45mm mm lens on a Fuji X-T2. The 45mm wide angle view I was seeking was gone. I put the same 645 45mm lens on my GFX-50R, via adapter, and the wide angle view had returned. Now I have to buy a $300 645 to GFX tilt/shift adapter. Ugh.
@AnthonySell
Жыл бұрын
@@graham_white I think you are miscalculating the crop factor. The way I understand it, because the image circle of a medium format lens is larger than the sensor of a 35mm crop body, the crop factor is actually a negative one. My understanding is that the RB67 lenses have a reverse crop factor of 2.1 for a full frame sensor (90/2.1), in which case your 90mm lens should have an effective focal length/field of view of a 43.85mm lens. Since an ASP-C body has a (positive) crop factor of 1.5 (for the fuji, 1.6 for canon), that lens should give you an effective focal length/field of view of 64.28mm. There is no way it is going to get you to 270mm. The only other factor I could see affecting this is that by adding adapters or speed boosters, you are elongating the flange distance of the lens to the sensor slightly, which may prevent you from getting infinity focus.
@graham_white
Жыл бұрын
@@AnthonySell It's funny you mention this as I am just now going back down this rabbit hole and was just wondering the other day how this math would even work when I compared my fuji 35mm (effectively a 50mm) to a mamiya 645 45mm adapted with a speed booster to my Fuji. You are definitely correct at least more than I was here and i'm trying to remember where I got this research/math from. because like you said a 90mm on the rb67 is essentially a 50mm because of the frame size etc.
@AnthonySell
Жыл бұрын
@@graham_white The math is tricky because you are talking about two different aspect ratios (3:2 vs 6:4.5). Further, the effective aperture is also modified by the crop ratio, so an f/1.9 lens should be around an f/1.3 lens on full frame, and I have no idea on an ASP-C sensor...
@MathieuStern
2 жыл бұрын
I love my Optar lenses !
@graham_white
2 жыл бұрын
I’m sure you know them much better than I. If I ever get over your way would definitely like to get together! Love your work.
@MathieuStern
2 жыл бұрын
@@graham_white come! I will show you some cool stuff
@graham_white
2 жыл бұрын
🔥🙏🏻 let me know if you’re ever in the states
@Cwbierwirth12
2 жыл бұрын
Thank you for this video! I got a Nikon 50mm/1.4 about 3 years ago and it's my favorite lens to shoot on. Now that I'm getting into film I have the adapter to put my Canon FL mount lenses onto my Fuji X-T30 and am really liking the results.
@CharlezRichard
2 жыл бұрын
Great video but I saw no video shoot nor photos using the medium format lens.
@giffordj106
Жыл бұрын
I recognize that promotional Kodak bag in the background, I have the same kit!
@graham_white
Жыл бұрын
Haha. It’s a rad bag!
@Dilburtus
9 ай бұрын
I do love the Fotodiox mount - super sturdy and great construction. I use it on my Nikon D600 and have the mount permanently attached to my old RB67 Mamiya K/L 90mm f/3.5 (so the crop factor comes to 2x so effectively a 180mm telephoto). The focusing helicoid takes a little getting used to as your fingers need training on how/where to try and focus. Also my RB lens is a floating element system type, so that makes it all a bit cumbersome (quite frankly) but overall it’s worth doing
@jude979
2 жыл бұрын
I literally got something to snack on to sit and watch this video hahahah..brilliant.
@graham_white
2 жыл бұрын
Haha
@SeanAndersonMedia
2 жыл бұрын
This is incorrect information. An RB67 medium format 90mm lens adapted to your APS-C Fuji X-mount camera will give you the exact same field of view as a native Fuji X-mount 90mm lens will. Try it out for yourself: adapt the RB67 lens to your Fuji camera and take a picture, then mount a Fuji lens that can zoom to 90mm and take the same picture. You'll get the same or just about the same framing and field of view with both lenses.
@graham_white
2 жыл бұрын
Are you basing this off of a speed booster or a dummy adapter? those two adapters are not going to give the same focal length so it's not entirely incorrect. I personally have not tried it (yet) so I'm relying strictly on the math I was given to calculate, although it still didn't quite add up or make sense to me either.
@depotmsa2362
2 жыл бұрын
hey you can get old lenses rehoused by duclose lenses , also you can now get 3d printed cine housing for most lenses on ebay , pretty cool stuff
@graham_white
2 жыл бұрын
Thanks depot! I know there are a few companies that rehouse lenses but pride point isn’t exactly great considering my uses don’t quite justify that yet. I have seen 3D printing offered for a few lenses. My concern there is of course if the tolerances or print is off the elements being off ever so slightly will be inaccurate and have bad image quality. Any insight/experience on that?
@braxtonjens7839
2 жыл бұрын
Want to see some of those photos with that mamiya 90mm on your Fuji!
@graham_white
2 жыл бұрын
Haha, for sure!
@ZainRiza
2 жыл бұрын
Holy shit… I’ve been looking for this solution forever. I’ve used FD lenses for my xt3 for years but I’ve never found a solution/ adapter for medium format lenses. Thanks for this.
@graham_white
2 жыл бұрын
Enter a whole new (money pit) world
@savschenk6486
Жыл бұрын
Happy I came across this! I have a mamiya rb67 w the same 90mm lens, was wondering what it would look like on the Fuji. I have an xt2 that I’d like to try it with. But alternatively, I’d like to throw this lens on my LUMIX S5 using sigma Ef to l adapter, that rb to ef adapter. Definitely an experiment in terms of usefulness since it’s not an everyday set up but could be fun to see the results.
@graham_white
Жыл бұрын
Would be really fun to see results! I need to check the adapters again, they have been out of stock for so long I haven’t been able to actually do it
@IvarsDayLab
2 жыл бұрын
Graham. All adapters are called FROM -->TO AI to EF means AI lens to EF camera. PK to NEX Pentax lens to Sony E... If you start talking fuji to pentax adapter tan it should be meaning that you adopt fuji lens to pentax camera. Talking about double conversion scheme: it usually is okay for close up shots as it is easy to understand focus but in the same time you possibly will not get a true infinity. Awesome for product photography and maybe not so great to landscape photography.
@graham_white
2 жыл бұрын
Ya easy to get tripped in the to and from when you start getting in the weeds. I did wonder about the accuracy of all these different mounts when you start double conversion. So far I haven’t had issues with focus so far and using focus peeking let’s me ensure it’s sport on. Good point though
@jude979
2 жыл бұрын
This is the kinda stuff i like to see 😂
@chrissoclone
2 жыл бұрын
I've been using the exact same adapter solution for a few years now - Lens Turbo EOS to FX with M42 and Pentax K adapters, never touched any "dumb" ones since. Those 120 Euros were the best investment I ever made for old lenses, and the additional glass (subjectively) even increases quality as in images appear sharper. However, I've grown a bit out of it lately, the Pentax K adapter constantly gets stuck on the Lens Turbo, plus the stack started annoying me sometimes, so I only use it for "proven" combos in certain situations anymore and otherwise try out cheap chinese native glass now. What I really like about the speed booster though is the +1 stop light (more or less), I often do concert photography in badly lit clubs and can get great pics with a cheap old prime, like 135 f2.8, at better shutter speeds than with any modern native lens.
@graham_white
2 жыл бұрын
The +1 stop is huge! Especially since using crop sensor you lose some of that depth. I agree there are only a few “proven” ones I use in paid gigs etc but It’s nice to test much quicker and easier other lenses even though they can be extremely finicky
@utube321piotr
2 жыл бұрын
Just remember that RB67 lenses have a shutter mechanism inside and it is always in shut position.
@graham_white
2 жыл бұрын
That lock on the back of the lens is a key thing to remember haha. I try to release it when I’m not using the lenses, apparently that helps reduce wear and tear on the springs etc which makes sense I suppose.
@sidg1
2 жыл бұрын
How about using a fotodiox shift adapter with a "wide-angle" medium format lens and speed booster on apsc. Will the camera be able to use the wider image circle properly? I'm thinking mainly for architectural photography.
@graham_white
2 жыл бұрын
Good point. I’ll have to try that as well
@eugenecarpenter8138
Жыл бұрын
I have been looking for a speed booster that will let me use my Pentax K-mount lenses on my Fujifilm X-T4. I can't seem to find a speed booster at any price to use. Any ideas?
@graham_white
Жыл бұрын
Ya that would be hard to find. Your best bet is to go the route I did. Get a speed booster for canon Ef to Fuji x and then get a regular dummy adapter for Pentax k to canon Ef
@benjones7506
2 жыл бұрын
yet again, a great vid
@graham_white
2 жыл бұрын
😁👌🙏🏻
@ChDe
2 жыл бұрын
Would the aperture value change? Also how would focusing work with the Sekor on the Fuji?
@graham_white
2 жыл бұрын
I believe the adapter had a focusing ring if I remember correctly, and I think I lose an f stop as well but need to double check that
@TrapPhoneLoveMelodiesss
2 жыл бұрын
No sample images?
@croixtucker1757
Жыл бұрын
Welp, now I know how Zack made that movie look so horrible.
@graham_white
Жыл бұрын
lol. It is a VERY particular look. I do think some shots went well with it due to the eerie/uncertainty of some scenes but yes I don't think this particular movie needed to be shot that entire way.
@rawcodecmedia302
2 жыл бұрын
Do you have any of those 645 cameras for sale from that collection?? How much
@graham_white
2 жыл бұрын
I do! A mamiya 645 and Pentax 645. Do you have Instagram? Shoot me a message. @Grahamt.white
@rwalshphotos5626
Жыл бұрын
So my Pentacon 300mm lens for 6x6 ends up more like a 834mm on my X-T4? 🤯🤯
@graham_white
Жыл бұрын
Jeeze, ha. I’d have to do the math but it would be quite a telephoto
@tomhoekstra1088
2 жыл бұрын
Hi, I'm considering to mount the Mamiya 90mm to my Nikon D610 dslr. For this I plan to buy the Fotodiox RB67/RZ67 mount with built in focusing helicoid; (at least when they are back in stock); do you have experience with this combination and is it worth while the high price of over 240$ (tax/duties in Europe)?
@graham_white
2 жыл бұрын
I’ve been trying to get my hands on one as well. Honestly It won’t give you mind blowing results compared to adapting a 35mm lens but personally I haven’t tried it to use it. I have a friend who has adapted a hasselblad lens to his Sony and the results are absurdly good. That being said I’m sure it’s good, but would you use it enough to be worth $240 more than other lenses?
@tomhoekstra1088
2 жыл бұрын
@@graham_white you are right, but having 5pcs of different size Mamiya lenses it is tempting to see what they can do. Would love to get the vintage sphere digitally. A digital back is out of the question $$$
@tomhoekstra1088
2 жыл бұрын
@@graham_white Right, Fotodiox told me it will take some time before its back on stock. And since I dislike waiting, I made one myself. a couple of pvc pipes cut to length and glued together worked pefectly. (the focusing part is a sliding piece) At least it functions well enough to compare sharpness and the loss of crop. Sharpness of the Mamiya 50 and 110mm actualy did not differ that much in comparisson to my Nikon 50 and Sigma 105; but it was an interesting exercise!
@graham_white
2 жыл бұрын
@@tomhoekstra1088 haha nice. creative solution for sure. I may have to steal that idea just cause as you said its a long wait and i am rather curious about results.
@tomhoekstra1088
2 жыл бұрын
@@graham_white I wonder if they really plan to manuf. them. I found ir quite a hazzle to get it focused. If you want the details of my adapter tell me where I can send a picture with explanation.
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