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akfreak
27-May-2011, 19:57
Ok I got my Camera home finally and I have a lot to do. I have a few questions about backs for this camera. Unfortunately I have a 5x7 back :(, I want an 8x10 back. I am sure many of you know that mess with these cameras the sliding back is made of a few pieces, there is a back inside of a back, inside of a back. The whole unit just pops in with a single clip at the top, inside that unit lives the sliding back, and inside of that lives the 5x7 spring back.

Well it looks like the whole unit has to be replaced, The opening if I remove the 5x7 spring back is not 10" wide, this means I have to find a whole new sliding back. This is a real bummer. I thought I was going to be able to buy just the spring back and fit the pins to the sliding back. I still may be able to do this but it will take some cutting to get the opening correct.


I have been digging around for more than a few weeks, waiting for my camera to arrive hoping I would have the 8x10 back already to go so I can restore this baby. Well luck has not been kind, I am still looking.


Please look at the pictures and tell me if I am wrong. It seems strange to make a 5x7 back smaller than an 8x10 back. It makes too much sense to have a universal rough opening that will take spring backs of various sizes starting with an 8x10, then have inserts for 5x7 and one for 4x5 that fit correctly and use the same pin locations.

I guess nothing will be easy on this one, It's real rough, and need lots of love. Looks like I am also going to have to spend $250 more just to get it to 8x10 grrr. That is if I can ever find the darn thing.

Here is the project and the measurements showing the size of the back

http://farm4.static.flickr.com/3627/5766539932_379a4cf5c1_b.jpg

http://farm4.static.flickr.com/3307/5765998619_74305b10fa_b.jpg

http://farm3.static.flickr.com/2064/5766008025_c4ae347ab6_b.jpg

akfreak
27-May-2011, 19:58
http://farm4.static.flickr.com/3034/5766561292_752ae587a2_b.jpg

http://farm3.static.flickr.com/2295/5766564548_cf53e5eafc_b.jpg

akfreak
27-May-2011, 20:00
http://farm6.static.flickr.com/5304/5766021193_781a40e8a8_b.jpg

Why the rough opening is 9 1/4" is beyond me that seems just plain dumb.

EdWorkman
27-May-2011, 20:23
I see 11 1/2 inches over the back- looks like a standard- at least it compares to the backs I have on a 2D and a B&J, as well as reducing backs for 5x7 [two different]and 4x5
You should be able to plug a typical 8x10 back on there, or make some minor modifications if the pin spacing is slightly off.
No reason to think a smaller [reducing] format would fit 8x10 ?? , just that it would fit the camera body.
You could hack the back you have to try to convert it to 8x10, but why?

akfreak
27-May-2011, 21:09
The 11 1/2 steps down, the sliding back accepts the spring back, the ID of the sliding back is 9 1/4" so if I were to fit the pins of the 8x10 to the sliding back the wood from the inside of the sliding back would block direct coverage to the GG/ film.

It's difficult to see in the images. I may have to make a video to show you whats going on. Or it is as simple as you say and I am just to thick to see it. LOL

Paul Fitzgerald
27-May-2011, 21:11
+1

like Ed posted 11.5" is the size of an Agfa/Ansco also so 8x10 backs should come up soon enough. The rebate will be different but can be modified to fit.

"Why the rough opening is 9 1/4" is beyond me that seems just plain dumb."

Economy and strength, thanks to the 'cone of light' from the center of the lens to the sides of the film it just may work as-is. The film sits further back than the opening. You can bevel the edges if needed, then flat black paint to hide the flair.

Have fun with it.

akfreak
27-May-2011, 21:53
So is this the way of all 10A 8x10 backs? Are the rough opening on the sliding back is 9 1/4" squared? Cone of light and coverage, that sounds logical. However edge coverage is always an issue in any format. I would think that a 9 1/4" opening will cause vignetting issues.

I am kinda of thick, but on every camera I have ever seen, the actual surface where the film is exposed has a direct path to the light from the lens. I did however see a 6x17 back go on a 4x5 because it was moved back 3/4" of an inch to let the light cover the film, so your theory may be correct.


I am still confused, thanks for trying to explain it for me. I did make a video to show you what I mean, if I want clear. Link here (http://www.youtube.com/watch?v=E9JaYX6aPhg) (still processing at you tube)

eddie
28-May-2011, 02:38
it is fine. that is how all of them are. it will not vignette. kodak did not make such elementary mistakes.

take off the 5x7 back. find an 8x10 back. snap it onto the sliding carriage and start making photos.

remember light passes through the lens and crosses......

eddie
28-May-2011, 02:40
ps. please make smaller images.....my tiny screen requires scrolling and is a real PITA to read your questions....

thanks

akfreak
28-May-2011, 10:22
Get you an I pad, lol ok I for get the iphone is your only means to the internet while on travel. SO any 8x10 will fit pins and work. So a 2a spring back will function?

eddie
28-May-2011, 11:23
Get you an I pad,


U buyin'? Send it to......:)

cdholden
29-May-2011, 15:18
+1

like Ed posted 11.5" is the size of an Agfa/Ansco also so 8x10 backs should come up soon enough. The rebate will be different but can be modified to fit.


I would avoid the Ansco backs. While the size may work for you, they have brass corners that slide into place rather than pins falling into holes. If you need extra pins to work with, you won't get these from an Ansco back (at least the ones I've seen).

Chris
Ansco owner

akfreak
29-May-2011, 21:45
Thanks, I am still searching, I have looked everywhere, I found a Deardorff for $250 and a graflex with moved pins for $250 plus shipping. This stuff is hard to find when you need it.


EDIT, Back Found, I contacted a highly respected photographer, and he had one and was gracious enough to sell it to me. I am getting all gitty, I make get to make a picture with my camera soon.