2 Attachment(s)
My Sinar F 4x5 + Canon 20d digital back
I misspelled the title. It should be Sinar F, not sinara
I recently tired of shooting fixed lens. I am unable to afford a Sinar digital back but am addicted to the freedom of expression that the monorail view camera gives.
Therefore I fabricated an adapter so that I am able to use the digital camera as a digital back for my Sinar.
The quality of images that I am able to generate this way is amazing.
I am using a Rodenstock 180/550 convertable lens on a Copal 1 shutter.
For those who like large format but have financial restrictions this may be a solution
The first picture is the adapter. The second is an image created using this setup
By the way the image size is 6" x 9"
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Attachment 73773
Attachment 73774
Re: My Sinar F 4x5 + Canon 20d digital back
I fixed the thread title.
How did you make the back please ?
Re: My Sinar F 4x5 + Canon 20d digital back
Aye. I am curious how you solved focusing with movements?
Re: My Sinar F 4x5 + Canon 20d digital back
Quote:
Originally Posted by
Ken Lee
How did you make the back please ?
1. Materials needed: Hacksaw, macro adapter, wood, paint, glue.
2. Using the hacksaw, cut off the part of the macro adapter that doesn't connect to the SLR body.
3. Cut the wood to the dimensions of a 4x5 holder, and take some off the sides so the Graflok slides will hold the wood.
4. Cut a hole in the wood for the macro adapter.
5. Glue the macro adapter into the wood.
6. Paint the wood black.
7. Attach the SLR and go forth and photograph.
Added: these have been made "commercially" for the Pentax 6x7 and a number of other SLRs. If your SLR has an "overhang" above the lens mount then you'll need to get a longer macro adapter.
Re: My Sinar F 4x5 + Canon 20d digital back
There are cheap Chinese ones that slide to take 6 photos on eBay.
I have yet to play w/mine...
Re: My Sinar F 4x5 + Canon 20d digital back
How many photos you can actually take depends on the focal length and subject distance, since you'll get some vignetting from the barrel of the adapter and the mirror box. If you use a short lens and slide with the back and use rise/fall movements, you can take at least a square of four or six overlapping frames with a full-frame DSLR (maybe 48 mm square, minimum), I've found, and more with longer lenses.
To shoot this way, I find it's best to compose and focus on the groundglass using only the available image area (so you may mark off the usable frame area on the glass or make a mental note of the borders, if you have grid marks), but then move the rear standard closer and refocus using the DSLR. Tilt/shift movements shouldn't change. You also need a consistent light source, or if you want to shoot with available light, you've got to work quickly to avoid slight shifts in exposure.
Re: My Sinar F 4x5 + Canon 20d digital back
Can anyone provide a link to one of these images at more substantial size, or post some larger images here ?
Sliding and stitching aside, I'd like to see what I could get in one image, with my 600mm APO Nikkor. Depending on sensor size, the equivalent "magnification" should be rather large.
Re: My Sinar F 4x5 + Canon 20d digital back
Example==
After I tilt I focus with the fine focusing tool on the Sinar.
I leave the lens open at the correct aperature and the exposure time is controlled by the 20d.
Re: My Sinar F 4x5 + Canon 20d digital back
I took the connecter ring off an old lens. I cut a board from thin plywood. I cut a hole in the plywood. I mounted the ring on the plywood. I sealed the ring with thick water based enamel. I sanded a groove to allow the 20d to mount. I then mounted it on the Sinar where you would normally mount the ground glass.
Due to the difference in focal lengths there are some restrictions but I am able to use the 20d effectivily as a digital back.
I hope this answers your questions.
By the first of June I will try to post detailled instructions on my blog.
Goto hiddenhousestudio.com and select "check out my blog"
I am new to this forum so I apologize for any mistakes.
Today is thurs 05-17-12.
I will check back on Saturday and try to answer any other questions you may have.
Remember KEEP SHOOTING