A Site for Photographers by Photographers

Community > Forums > Medium Format > Mamiya Press > Flare, light leak, or...

Featured Equipment Deals

Transformational Imagemaking: An Interview with Robert Hirsch Read More

Transformational Imagemaking: An Interview with Robert Hirsch

Robert Hirsch takes us through history in this interview about his new book, beginning with the groundbreaking 60s to contemporary work of today, featuring artists in his book that "...literally have...

Latest Equipment Articles

Choosing a Mobile Photo Printer Read More

Choosing a Mobile Photo Printer

In today's mobile, digital world, we carry hundreds or even thousands of pictures around on our smartphones and tablets. Tom Persinger looks at 4 different mobile photo printer options for getting...

Latest Learning Articles

Advanced Printing with Lightroom (Video Tutorial) Read More

Advanced Printing with Lightroom (Video Tutorial)

Building upon last week's Basic Printing with Lightroom video tutorial, this advanced printing tutorial will teach you to print contact sheets, print multiple images at a time, use Lightroom's present...


Flare, light leak, or processing problem?

Greg Thomas , Jan 14, 2009; 01:16 a.m.

Ok, I can't see that it's flare, because I shot 3 frames in the same exact position, and the defect runs between frames.

I can't see that it's a light leak since I've put 4 rolls of film through this back and this is the only frame with a problem.

Could it be a processing problem? If it's not I'll have to take a closer look at this back.

Mamiya Press Super, 6x7 back, Provia 100:

Responses

Robert Cossar , Jan 14, 2009; 01:20 a.m.

It looks like handling marks to me.....I've seen this before in roll film, especially if the film is hand rolled onto the reel.....I'd show it to the processor and see what he says...regards, Bob

Ronald Moravec , Jan 14, 2009; 04:58 a.m.

The crescent marks are from squeesing the film edge to edge too much to get it on the reel. The short straight lines are scratches incurred somewhere, likely processing.

The streak that extends into the black area is a light streak.

Stuart Richardson , Jan 14, 2009; 05:00 a.m.

yeah, that crescent is a tell-tale sign of the film being bent such that it gets a kink in it...When I was learning how to load 120 reels to process my own film, I did this a number of times. Unusual to see it in color though...usually those systems have a way to minimize this sort of operator error.

Rodeo Joe , Jan 14, 2009; 09:26 a.m.

Take a close look at the film area where the crescent mark is. Any film that's been bent that much will have a permanent "dent" left in it. If you can see the deformation in the film, then it's definitely due to incorrect handling. If not - well it just MIGHT be light fogging that's coincidentally in the shape of a quarter moon.

My money's on you seeing a slight dent in the film.

Greg Thomas , Jan 14, 2009; 02:43 p.m.

Damn, I'm looking at this film, and see no physical bends or dents at all. But I do see lines in the crescent like the emulsion has been cracked.

I wish I could process my own E6.

Ten Ox , Jan 18, 2009; 02:51 p.m.

If you can develop at all, have the equipment for B+W processing for instance, then you can do E-6. Kits are available. One supplier:
http://www.freestylephoto.biz/c1002-Color-Chemicals-Color-Slide

/..

Pete Wellington , Sep 27, 2011; 06:26 a.m.

Did you ever figure this out?
I have a mamiya universal (90mm, 6x9 s shaped back) that is exhibiting a very similar leak, but quite frequently in my case.
I don't see any dents in the negative.

Back to top

Notify me of Responses