Got the adapter built, but too late for testing today. Need to get the rear rail distances measured and marked for each lens. To make sure that the digital back does not come too close to the rear of the lens and hit the sensor. Not good
Sacrificed a Bronica EC focusing helicoid (had a spare one) and had to rig up an aperture control lever spring on the helicoid. That function is normally accomplished inside the Bronica body.
Overall I think it turned out well. I now have aperture control and although I don't need focus function on the lens (controlled by the Cambo Actus rails), I still have that option.
The Bronica medium format film cameras actually had a tilt, shift, swing bellows for their cameras. So thinking the performance of the Nikkor Bronica lenses may be ok in this set up. I hope to get some time this week to do some test shots. Really need to give the epoxy a day to fully cure anyway.
It was a fun project with the day off from work today.
All shots with the Micro-Nikkor 55mm f/3.5
George
leighton w wrote:
We need to see some pics of it after it's mounted on the camera. Oh, and results from it.
Bronica focus helicoid adapted to a Cambo lensplate
Jay,
Good series, and glad to hear the milk bread roux improves whole wheat bread. Barb is still making my multi-grain/seedy bread every 10 days. I wonder if the roux would help it, because lately she hasn't been happy with the height of the loaves.
Jim
HCE HCE wrote:
James - I tried the "tanzhong" (milk bread) roux on a simple otherwise unaltered recipe for whole wheat I make in a bread machine and it results in a much improved softer texture with a higher rise.
That sucks! The camera house brick club is the one nobody wants to join.
DeltaSigma wrote:
Looks like I have a D610 IR that is beyond economic repair.
Now that I am back home I can see that the spindle (the rod that the secondary mirror oval should rotate around) does not protrude from the mirror side enclosure. I wonder if the spindle is spring loaded in order to keep tension on the oval. Either that or the spindle has broken off. Scott sent me some D610 images to use as a comparison.
With a bit of gentle pressure I was able to move the primary mirror and secondary mirror to the fully-opened position.
So, it looks like I will need a new mirror box. That is a very invasive and time consuming process. Then there is the cost of sourcing a replacement mirror box.
I will probably look for a low shutter D610 replacement body so that I can swap in the IR sensor unit.
Thanks to everyone for the images, Youtube links and suggestions.
DeltaSigma wrote:
Looks like I have a D610 IR that is beyond economic repair.
Now that I am back home I can see that the spindle (the rod that the secondary mirror oval should rotate around) does not protrude from the mirror side enclosure. I wonder if the spindle is spring loaded in order to keep tension on the oval. Either that or the spindle has broken off. Scott sent me some D610 images to use as a comparison.
With a bit of gentle pressure I was able to move the primary mirror and secondary mirror to the fully-opened position.
So, it looks like I will need a new mirror box. That is a very invasive and time consuming process. Then there is the cost of sourcing a replacement mirror box.
I will probably look for a low shutter D610 replacement body so that I can swap in the IR sensor unit.
Thanks to everyone for the images, Youtube links and suggestions.
the solitaire wrote:
I agree, the Nikkor-O 35mm f2 is a lens with very attractive rendering. One thing that stops me from using it more often is the lack of corner sharpness, even at f5,6. But that is hardy what such a lens should be used for, so I'm now waiting for a 35-70 f3,5 zoom Nikkor to do the job.
In the meanwhile I finally came to making photo's again.
here are some with the 55mm f1,2
Processing through Affinity Photo, because my notebook stopped working and I still need to recover the Lightroom license from it.
All of these were still taken using my D800, still relying on the optical viewfinder. I tried a Z6 in the meanwhile, and even though it is nice, I still prefer the view through the mirror and pentaprism myself. Even though I am getting older, and really more then occasionally use the back display for low angle shots, rather then crawl on the forest floor. Shame on me for getting lazy like that. ...Show more →
Good to see you again Buddy. Hope you and the family are well.
GeorgeBo wrote:
Got the adapter built, but too late for testing today. Need to get the rear rail distances measured and marked for each lens. To make sure that the digital back does not come too close to the rear of the lens and hit the sensor. Not good
Sacrificed a Bronica EC focusing helicoid (had a spare one) and had to rig up an aperture control lever spring on the helicoid. That function is normally accomplished inside the Bronica body.
Overall I think it turned out well. I now have aperture control and although I don't need focus function on the lens (controlled by the Cambo Actus rails), I still have that option.
The Bronica medium format film cameras actually had a tilt, shift, swing bellows for their cameras. So thinking the performance of the Nikkor Bronica lenses may be ok in this set up. I hope to get some time this week to do some test shots. Really need to give the epoxy a day to fully cure anyway.
It was a fun project with the day off from work today.
Looks factory from here. I have two questions, both of them random. What type of epoxy did you use? And, how many Nikon lenses are there in the Bronica mount?
That is something I have been thinking of for a long time. Never wanted to invest in the experiment though, because I had other plans back then, but this looks like something to follow up on in the future.
Thnx for sharing George. Looking forward to the first pictures taken with this rig
GeorgeBo wrote:
Got the adapter built, but too late for testing today. Need to get the rear rail distances measured and marked for each lens. To make sure that the digital back does not come too close to the rear of the lens and hit the sensor. Not good
Sacrificed a Bronica EC focusing helicoid (had a spare one) and had to rig up an aperture control lever spring on the helicoid. That function is normally accomplished inside the Bronica body.
Overall I think it turned out well. I now have aperture control and although I don't need focus function on the lens (controlled by the Cambo Actus rails), I still have that option.
The Bronica medium format film cameras actually had a tilt, shift, swing bellows for their cameras. So thinking the performance of the Nikkor Bronica lenses may be ok in this set up. I hope to get some time this week to do some test shots. Really need to give the epoxy a day to fully cure anyway.
It was a fun project with the day off from work today.
Just used what I had. Some Gorilla Glue two part epoxy. 5 minute set. But should have used something with a quicker set time. Had to make sure it did not flow into areas it should not have been
Nikon made a number of lenses for the Bronica S/EC line of 6x6 medium format cameras. Looking at the Complete Nikon System guide by Peter Braczko...
Production lenses of 40mm, 50mm, 75mm, 105mm, 13.5cm, 200mm, 250mm, 300mm, 350mm, 400mm, 500mm, 600mm, 800mm and 1200mm. They also had a 30mm f/2 prototype but never went to production.
I could not imagine using those long lenses on a 6x6 film camera. The tripod would have to be a concrete pier for stability
There were variations of most lenses in f stop and coatings.
I have the 40, 50 and 75. I think Samy has others.
George
leighton w wrote:
Looks factory from here. I have two questions, both of them random. What type of epoxy did you use? And, how many Nikon lenses are there in the Bronica mount?
GeorgeBo wrote:
Just used what I had. Some Gorilla Glue two part epoxy. 5 minute set. But should have used something with a quicker set time. Had to make sure it did not flow into areas it should not have been
Nikon made a number of lenses for the Bronica S/EC line of 6x6 medium format cameras. Looking at the Complete Nikon System guide by Peter Braczko...
Production lenses of 40mm, 50mm, 75mm, 105mm, 13.5cm, 200mm, 250mm, 300mm, 350mm, 400mm, 500mm, 600mm, 800mm and 1200mm. They also had a 30mm f/2 prototype but never went to production.
I could not imagine using those long lenses on a 6x6 film camera. The tripod would have to be a concrete pier for stability
There were variations of most lenses in f stop and coatings.
I have the 40, 50 and 75. I think Samy has others.
This is about 1 mile down the road from us. It's part of Eavers farm, who they bought from the lady who owns the King Ranch in Texas, one of the largest in the world. It's over 800,000 acres.
I love the black and white conversion in this one. Perfect
leighton w wrote:
This is about 1 mile down the road from us. It's part of Eavers farm, who they bought from the lady who owns the King Ranch in Texas, one of the largest in the world. It's over 800,000 acres.
Jose,
That bird has very forward facing eyes for a non-owl. Whenever I have got a bird looking at me - the eyes seem to be sticking out of the sides of the face.
Jim
asiostygius wrote:
Chalk-browed Mockingbird staring at the photog
George,
I did something similar back in the 1970s to adapt my Exa, & Exakta cameras to a 960mm refractor telescope. I used a metal body cap, and filed out the center until an extra lens mount barrel would just protrude through the cap. Painted all with black magic marker, and glued it with 24 hour epoxy. I always was worried that it would fail, but it never did.
Jim
GeorgeBo wrote:
Just used what I had. Some Gorilla Glue two part epoxy. 5 minute set. But should have used something with a quicker set time. Had to make sure it did not flow into areas it should not have been
Nikon made a number of lenses for the Bronica S/EC line of 6x6 medium format cameras. Looking at the Complete Nikon System guide by Peter Braczko...
Production lenses of 40mm, 50mm, 75mm, 105mm, 13.5cm, 200mm, 250mm, 300mm, 350mm, 400mm, 500mm, 600mm, 800mm and 1200mm. They also had a 30mm f/2 prototype but never went to production.
I could not imagine using those long lenses on a 6x6 film camera. The tripod would have to be a concrete pier for stability
There were variations of most lenses in f stop and coatings.
I have the 40, 50 and 75. I think Samy has others.
James Markus wrote:
Jay,
Good series, and glad to hear the milk bread roux improves whole wheat bread. Barb is still making my multi-grain/seedy bread every 10 days. I wonder if the roux would help it, because lately she hasn't been happy with the height of the loaves.
Jim
I'd estimate conservatively a 20% increase in height and makes a HUGE difference in the texture. Its a remarkable change considering the tiny amount of roux. I ran out of milk so used a pat of butter in the roux, and did not measure except by eye.
I'm calling this magic!
Thank you Leighton. Yes, the family is doing well. Anouk has grown to be quite the stubborn, smart and attentive child. She catches everything, and is quite witty, with an extensive vocabulary already. That promises to be more then a handfull when she grows up,but I actually look forward to that, and enjoy the time I get to spend with the family now.
I managed to get moved to a project that allows me to spend more time at home, although due to the lower salary I get there, I needed to expand my freelance activities as painter and woodcrafter to pay the bills.
That, netto, leaves less time for hobby photography, but I can live with the tradeoff
leighton w wrote:
Good to see you again Buddy. Hope you and the family are well.
All about balance isn't it Buddy? I turned down a corporate move a number of years ago and basically ended my progression upwards. Looking back, I don't regret it one bit. One of the few times in my life, hind sight is spot on
the solitaire wrote:
Thank you Leighton. Yes, the family is doing well. Anouk has grown to be quite the stubborn, smart and attentive child. She catches everything, and is quite witty, with an extensive vocabulary already. That promises to be more then a handfull when she grows up,but I actually look forward to that, and enjoy the time I get to spend with the family now.
I managed to get moved to a project that allows me to spend more time at home, although due to the lower salary I get there, I needed to expand my freelance activities as painter and woodcrafter to pay the bills.
That, netto, leaves less time for hobby photography, but I can live with the tradeoff
