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shanterg
Joined: 25 Aug 2008 Posts: 0
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Posted: Mon Aug 25, 2008 3:02 am Post subject: Bronica > 52mm Reversing Ring Prototype |
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shanterg wrote:
Hey all!
My name is Shant, just want to introduce myself and what I've been working on the past few weeks.
Long story short, i bought my first 35mm camera a month or so ago. I mainly shoot medium format - a Bronica ETRSi - but next semester I'm taking a BnW 35mm class so I figured I should grab one and start shooting.
Only problem is that I've been having the hardest time finding a lens that i like. With all the lens reviews online and all the opinions floating around its pretty confusing. I bought an F100 and so far I've tested 5-6 Nikon lenses and was pretty disappointed at most of them.
Anyways a few weeks ago i sat down with a friend of mine and came up with a design for an adapter so i could slap on a Bronica lens onto my nikon. I found 2 different places online that had some sort of setup but i wanted to make sure the lens was (as close to) 100% functional. So we came up with this:
my beater $9 bronica lens!
Its a pretty simple design, its hard to tell from the pictures, but the adapter is adjustable so i can change the register distance to match that of the Bronica. I probably cant get it perfect but i plan on using it for more closeup and portraiture stuff. Its a 5 part design. The lens attaches to a bronica mount taken off of an old bronica body. That piece is attached to 'step down' adapter made of two threaded tubes. Then that attaches to a nikon 52mm reverse mounting ring (BR2A). The whole thing is then held together by a locking nut with a rubber O-ring. So the design can probably be 'adapted' to most cameras. All you need is a 52mm reversing ring and some patience.
The examples i have are too large to post. And i dont have photoshop at the moment. so...MY BLOG FOR PICS!!! >>
So what im trying to find out now is if anyone has any suggestions for making the design better. Is there anything that would be beneficial to add?
I would also like to find out the register distance of the Bronica ETRSi but i haven't been able to find it. Someone else on here asked the question before but was only able to find the SQ register distance. If i can find the actual register distance i can just machine one to be the exact length...
Also is there any way that could possibly feed the aperture data from the bronica to the nikon? Anyone have any experience with bronica electronics?
*edit* Pictures dont seem to be working. and links are outa wack. help? oh all pics can be seen here > tnahs.blogspot.com (copy/paste) |
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F16SUNSHINE
Joined: 20 Aug 2007 Posts: 5486 Location: Left Coast
Expire: 2011-11-18
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Posted: Mon Aug 25, 2008 3:18 am Post subject: |
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F16SUNSHINE wrote:
Welcome Shant. Attila will fix your post so we may all view your fotos. The forum has an anti-spam feature that blocks first time posts. I must say that you will find some Nikkors that you will be happy with. Continue your search there are many gems from nikon.
Andy _________________ Moderator |
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patrickh
Joined: 23 Aug 2007 Posts: 8551 Location: Oregon
Expire: 2011-11-18
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Posted: Mon Aug 25, 2008 4:34 am Post subject: |
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patrickh wrote:
What nikkors have you tried? and what are you looking for? There are a few on this forum with a lot of experience with nikon lenses who may be able to help.
And welcome to the forum
patrickh _________________ DSLR: Nikon D300 Nikon D200 Nex 5N
MF Zooms: Kiron 28-85/3.5, 28-105/3.2, 75-150/3.5, Nikkor 50-135/3.5 AIS // MF Primes: Nikkor 20/4 AI, 24/2 AI, 28/2 AI, 28/2.8 AIS, 28/3.5 AI, 35/1.4 AIS, 35/2 AIS, 35/2.8 PC, 45/2.8 P, 50/1.4 AIS, 50/1.8 AIS, 50/2 AI, 55/2.8 AIS micro, 55/3.5 AI micro, 85/2 AI, 100/2,8 E, 105/1,8 AIS, 105/2,5 AIS, 135/2 AIS, 135/2.8 AIS, 200/4 AI, 200/4 AIS micro, 300/4.5 AI, 300/4.5 AI ED, Arsat 50/1.4, Kiron 28/2, Vivitar 28/2.5, Panagor 135/2.8, Tamron 28/2.5, Tamron 90/2.5 macro, Vivitar 90/2.5 macro (Tokina) Voigtlander 90/3.5 Vivitar 105/2.5 macro (Kiron) Kaleinar 100/2.8 AI Tamron 135/2.5, Vivitar 135/2.8CF, 200/3.5, Tokina 400/5,6
M42: Vivitar 28/2.5, Tamron 28/2.5, Formula5 28/2.8, Mamiya 28/2.8, Pentacon 29/2.8, Flektogon 35/2.4, Flektogon 35/2.8, Takumar 35/3.5, Curtagon 35/4, Takumar 50/1.4, Volna-6 50/2.8 macro, Mamiya 50/1.4, CZJ Pancolar 50/1,8, Oreston 50/1.8, Takumar 50/2, Industar 50/3.5, Sears 55/1.4, Helios 58/2, Jupiter 85/2, Helios 85/1.5, Takumar 105/2.8, Steinheil macro 105/4.5, Tamron 135/2.5, Jupiter 135/4, CZ 135/4, Steinheil Culminar 135/4,5, Jupiter 135/3.5, Takumar 135/3.5, Tair 135/2.8, Pentacon 135/2.8, CZ 135/2.8, Taika 135/3.5, Takumar 150/4, Jupiter 200/4, Takumar 200/4
Exakta: Topcon 100/2.8(M42), 35/2.8, 58/1.8, 135/2.8, 135/2.8 (M42), Kyoei Acall 135/3.5
C/Y: Yashica 28/2.8, 50/1.7, 135/2.8, Zeiss Planar 50/1.4, Distagon 25/2.8
Hexanon: 28/3.5, 35/2.8, 40/1.8, 50/1.7, 52/1.8, 135/3.2, 135/3.5, 35-70/3.5, 200/3.5
P6 : Mir 38 65/3.5, Biometar 80/2.8, Kaleinar 150/2.8, Sonnar 180/2.8
Minolta SR: 28/2.8, 28/3.5, 35/2.8, 45/2, 50/2, 58/1.4, 50/1.7, 135/2.8, 200/3.5
RF: Industar 53/2.8, Jupiter 8 50/2
Enlarg: Rodagon 50/5,6, 80/5,6, 105/5.6, Vario 44-52/4, 150/5.6 180/5.6 El Nikkor 50/2,8,63/2.8,75/4, 80/5,6, 105/5.6, 135/5.6 Schneider 60/5.6, 80/5.6, 80/4S,100/5.6S,105/5.6,135/5.6, 135/5.6S, 150/5.6S, Leica 95/4 |
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hacksawbob
Joined: 28 Feb 2007 Posts: 1293 Location: LANCS UK
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Posted: Mon Aug 25, 2008 6:50 am Post subject: |
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hacksawbob wrote:
http://tnahs.blogspot.com
heres an EOS/Bronica mount I did some time ago, but no focus closer than about 2 metres
http://forum.mflenses.com/diy-bronica-etr-to-eos-mount-t4943,highlight,bronica.html
I copied over the images to my post to see them for now.
my beater $9 bronica lens! _________________ LENS LIST
Last edited by hacksawbob on Mon Aug 25, 2008 7:28 am; edited 1 time in total |
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hacksawbob
Joined: 28 Feb 2007 Posts: 1293 Location: LANCS UK
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Posted: Mon Aug 25, 2008 7:21 am Post subject: |
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hacksawbob wrote:
just an update on the lens register distance my mount is 18.48mm it is too short. the distance that is listed in the post I linked to is clearly wrong (101.7mm) but that is all I could find on the internet maybe it is the SQ distance. your adjustable version is clearly a better solution. interested to know where the "two threaded tubes" were sourced from. _________________ LENS LIST |
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shanterg
Joined: 25 Aug 2008 Posts: 0
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Posted: Mon Aug 25, 2008 10:57 pm Post subject: |
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shanterg wrote:
Thanks hacksawbob.
About the threaded tubes. My dad works in a machine shop so we pretty much machined the whole thing from some billet aluminum. I went during his lunch hour and machined it out over a week or so.
@patrickh - I've tried the 50mm 1.4 AF-D, 28 2.8 AF-D, 28 2.8 AI-s, 20 2.8 AF-D, 85 1.8 AFD, 50 1.8 AI(S?) SER E.
I'm sure they are all good lenses but if I'm going to drop over 300 on any lens its really got to be great. I paid 150 for a normal Bronica lens and it feels amazing and it shoots wonderful photographs. It's the same old complaint, I just cant give $500 for an AF lens that feels like plastic.
What im looking for right now is a wide and normal. I think 20mm might be a bit too wide for me right now. Id probably want to cover that range with a wide zoom. 24mm seems a bit more my cup of tea, but im not sure which one. And as for a 50mm, almost all the Nikkors that i've seen reviews of were very sharp but also had horrible rear bokeh. Especially the 1.4 AF-D.
It's just hard to test out a bunch of lenses. The one used equipment store thats close to me wont allow returns on used lenses unless the lens is defective. And there no way I'm buying a lens without shooting some pictures on it beforehand.
I know this is a loaded question but any suggestions? Just so i know what to look for at flea markets and used camera stores. |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Mon Aug 25, 2008 11:24 pm Post subject: |
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Attila wrote:
Nice to see you here! _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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patrickh
Joined: 23 Aug 2007 Posts: 8551 Location: Oregon
Expire: 2011-11-18
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Posted: Tue Aug 26, 2008 1:07 am Post subject: |
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patrickh wrote:
The nikkor 35/1.4 AI/AIS is a great lens - solid, sharp, nice OOF, good colours etc. The 24/2 AIS is another good one. I agree about the boke of the 50's - for truly great boke try the 85/1.4 AIS, but it is expensive. I suspect the laws of supply and demand will push the relative cost of the nikkors over the Bronica equivalents.
patrickh
Interesting work BTW _________________ DSLR: Nikon D300 Nikon D200 Nex 5N
MF Zooms: Kiron 28-85/3.5, 28-105/3.2, 75-150/3.5, Nikkor 50-135/3.5 AIS // MF Primes: Nikkor 20/4 AI, 24/2 AI, 28/2 AI, 28/2.8 AIS, 28/3.5 AI, 35/1.4 AIS, 35/2 AIS, 35/2.8 PC, 45/2.8 P, 50/1.4 AIS, 50/1.8 AIS, 50/2 AI, 55/2.8 AIS micro, 55/3.5 AI micro, 85/2 AI, 100/2,8 E, 105/1,8 AIS, 105/2,5 AIS, 135/2 AIS, 135/2.8 AIS, 200/4 AI, 200/4 AIS micro, 300/4.5 AI, 300/4.5 AI ED, Arsat 50/1.4, Kiron 28/2, Vivitar 28/2.5, Panagor 135/2.8, Tamron 28/2.5, Tamron 90/2.5 macro, Vivitar 90/2.5 macro (Tokina) Voigtlander 90/3.5 Vivitar 105/2.5 macro (Kiron) Kaleinar 100/2.8 AI Tamron 135/2.5, Vivitar 135/2.8CF, 200/3.5, Tokina 400/5,6
M42: Vivitar 28/2.5, Tamron 28/2.5, Formula5 28/2.8, Mamiya 28/2.8, Pentacon 29/2.8, Flektogon 35/2.4, Flektogon 35/2.8, Takumar 35/3.5, Curtagon 35/4, Takumar 50/1.4, Volna-6 50/2.8 macro, Mamiya 50/1.4, CZJ Pancolar 50/1,8, Oreston 50/1.8, Takumar 50/2, Industar 50/3.5, Sears 55/1.4, Helios 58/2, Jupiter 85/2, Helios 85/1.5, Takumar 105/2.8, Steinheil macro 105/4.5, Tamron 135/2.5, Jupiter 135/4, CZ 135/4, Steinheil Culminar 135/4,5, Jupiter 135/3.5, Takumar 135/3.5, Tair 135/2.8, Pentacon 135/2.8, CZ 135/2.8, Taika 135/3.5, Takumar 150/4, Jupiter 200/4, Takumar 200/4
Exakta: Topcon 100/2.8(M42), 35/2.8, 58/1.8, 135/2.8, 135/2.8 (M42), Kyoei Acall 135/3.5
C/Y: Yashica 28/2.8, 50/1.7, 135/2.8, Zeiss Planar 50/1.4, Distagon 25/2.8
Hexanon: 28/3.5, 35/2.8, 40/1.8, 50/1.7, 52/1.8, 135/3.2, 135/3.5, 35-70/3.5, 200/3.5
P6 : Mir 38 65/3.5, Biometar 80/2.8, Kaleinar 150/2.8, Sonnar 180/2.8
Minolta SR: 28/2.8, 28/3.5, 35/2.8, 45/2, 50/2, 58/1.4, 50/1.7, 135/2.8, 200/3.5
RF: Industar 53/2.8, Jupiter 8 50/2
Enlarg: Rodagon 50/5,6, 80/5,6, 105/5.6, Vario 44-52/4, 150/5.6 180/5.6 El Nikkor 50/2,8,63/2.8,75/4, 80/5,6, 105/5.6, 135/5.6 Schneider 60/5.6, 80/5.6, 80/4S,100/5.6S,105/5.6,135/5.6, 135/5.6S, 150/5.6S, Leica 95/4 |
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poilu
Joined: 26 Aug 2007 Posts: 10472 Location: Greece
Expire: 2019-08-29
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Posted: Tue Aug 26, 2008 6:28 am Post subject: |
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poilu wrote:
welcome Shant!
have a nice time with us _________________ T* |
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