E- Bay 6x12 roll film backs

[Nick Zentena]

The only thing I had to do with mine was losen the slider screws. I guess since I got it the wood expanded. Have you pulled the sliders out of the way? Only thing I can think of.

 

[Digidurst]

The only thing I had to do with mine was losen the slider screws. I guess since I got it the wood expanded. Have you pulled the sliders out of the way? Only thing I can think of.

Nope, it's not the sliders; They were completely out of the way when I tried to put the back on. The holder is so tight against the wood that it just won't mount and I don't want to force it. Jeez, you'd think a back made for the camera would fit!

 

[Nick Zentena]

And normal cut film holders fit fine?

 

[Digidurst]

Yeah, Ive used a Polaroid holder, various sheet film holders (though some are more snug than others), Fuji Quickload holder... no problem.

 

[Nick Zentena]

Only thought is the camera back and the roll film are at opposite ends of the tolerance. I've been trying to find the standard for 4x5 film holder but I can't.

 

[David A. Goldfarb]

If you're attaching it correctly and it's just a tiny bit too tight, it's the sort of problem I'd probably solve with a little judicious sanding, but get a second opinion from someone who actually has seen the camera first.

 

[Digidurst]

Only thought is the camera back and the roll film are at opposite ends of the tolerance. I've been trying to find the standard for 4x5 film holder but I can't.

Are you saying that I should try putting it in upside down?

:confused:

Just for giggles, I tried the 6x12 in my Horseman and it fit perfectly. That tells me that it's got to be the back on the Shen. Especially considering the snugness of some of my other sheet film holders. So David, your suggestion of some judicious sanding might be in order. But I'd be interested to know if anyone else has had to do that on their Shens. Maybe I just got a bad back??

 

[Nick Zentena]

No not up side down. Everything has a certain tolerance. The back opening is supposed to be a certain size +/- a little. The film holder is allowed to be a certain size +/- a little. I'm wondering if the back opening is at the - side of things and the holder at the + side.

 

[Digidurst]

No not up side down. Everything has a certain tolerance. The back opening is supposed to be a certain size +/- a little. The film holder is allowed to be a certain size +/- a little. I'm wondering if the back opening is at the - side of things and the holder at the + side.

I see what you mean - thanks for clarifying.

 

[Nick Zentena]

Okay I found this. Supposedly a 4x5 film holder is supposed to be 4.765" wide. Measure your roll film holder and see if it's more then that. Measure the back opening to see if it's less then that.

 

[Nick Zentena]

My holder is just over 4.6" need a digital caliper for any more accurate then that. The opening is 4.7"

 

[Digidurst]

Interesting Nick... I'll have measure mine to see what I've got.

One thing that occured to me... My film holder says "DaYi" even though when I ordered it, it was referred to a Shen-Hao. I wonder if that could be the problem?? I've never heard of the DaYi; I just assumed it was made by the same folks.

 

[David A. Goldfarb]

My 6x17 back is made by Da Yi. The brands I've seen are Da Yi, Kang Tai, and Shen-Hao.

 

[Nick Zentena]

I don't know what the situation is with Dayi versus Shen Hao. Maybe it's two companies. Maybe they just label some for Shen Hao. Maybe they have no relationship at all. You can see the Shen Hao 612bc on the Badger graphic website. That's the one I have.

The pictures on the Shen Hao site are tiny but it looks like two different 6x12 backs. One is the one I have. The other?

 

[polyglot]

Thread resurrection!

I'm looking at getting one of these backs but wondering if the red window is a problem for colour or IR film. Has anyone tried these with anything other than B&W and checked for red-leakage?

thanks...

 

[SMBooth]

Not a problem for colour 120 but 220 would be a problem because of the lack of backing paper, have never tried it on IR.

 

[cps]

Like SMBooth said, color will be no problem in these roll film backs - my Dayi doesn't even have red plastic in the window (it's just a hole), but the paper backing on 120 film is well-designed to stop that light from affecting the film. I love using this back for the cheap access to color that it gives me on my Linhof.

I will try to write up a more comprehensive review of my DaYi 6x12 back sometime, but the short version is that you should possibly expect to deal with some fixable QC issues that result in light leakage (at least that was the case with the 6x12 DaYi I bought recently). Mine in particular suffered from incredibly bad light leaks through, around, and near the port for the dark slide. Destroyed several rolls of film.

I spent some time spent taking it apart along with judicious tweaking of certain bits and application of electrician's tape and solved the problem completely. It is solid otherwise, and I expect no further issues. Now that it is working, I love it. But, I have to say that light-fastness seems like such a fundamental property for a piece of film-handling equipment that I find it sort of inexplicable how a brand-new film back could fail so miserably on this basic charge. I guess you get what you pay for - it costs about 1/10 what a Linhof back would cost. At least it was easy to fix.

 

[PKM-25]

Thread resurrection!

I'm looking at getting one of these backs but wondering if the red window is a problem for colour or IR film. Has anyone tried these with anything other than B&W and checked for red-leakage?

thanks...

I second this question, anyone try it with IR?