Film defects Mamiya c330 pro

[instantcrow]

I've developed a few rolls of TriX 400 on a Mamiya c330 pro, and the negatives have been fine aside from excessive linear silver density at the sides of most frames. These linear densities extend beyond the bounds of the frame. The negatives themselves are fine otherwise with no fogging or dents. The printed images are lighter on edges where these densities are. See attached images.

I'm developing in Rodinol 1:50 at 20degC for 9minutes with typical agitation for first 30s then 10s/minute thereafter. citric acid stop, ilford rapid fix. I'm using a Nikor stainless steel tank and reels with 15 oz (450mL) developer as per instructions. This leaves adequate headroom. I do not think these are edge effects, though I could be wrong. They almost look like light reflections from the silver-colored film guides inside the camera. Any ideas are much appreciated. Thanks!

 

[BrianShaw]

Is this a new phenomenon from this combination of camera and processing equipment? Or have they been performing correctly in the past?

 

[BrianShaw]

BTW, that’s not Tri-X…

 

[instantcrow]

BTW, that’s not Tri-X…

GUilty as charged...I left out that I shot some tmax 100 gifted to me by Bob Herbst. Regardless, same defect happened with TriX my usual film. Thanks for pointing this out.

 

[instantcrow]

Is this a new phenomenon from this combination of camera and processing equipment? Or have they been performing correctly in the past?

I have shot about five rolls through this camera, and they all had the same defect. I have no prior experience with MF film or cameras, so I have no prior comparison.

 

[miha]

@instantcrow did you use a wetting agent?

 

[instantcrow]

@instantcrow did you use a wetting agent?

I assume you mean post fix/wash, and yes I did. I used Kodak Photo flo. I did not pre-soak the film prior to developing stage, however.

 

[MattKing]

I would suspect some reflection or other source of light fogging in the camera.
How are the light seals, and is the back latching securely?

 

[runswithsizzers]

Honestly, I am having trouble seeing the problem with your example negatives. But when you say, "excessive linear silver density at the sides of most frames" it sounds a lot like a problem I was having with developing my 120 negatives. Certainly, I was also having the problem of, "...printed images are lighter on edges where these densities are."

Would you say what you are seeing is similar to what I described in this thread?
(scroll down to posts #25-26-27 for better examples of what I was seeing)

Agitation, surge, and uneven development?

I have been noticing pale edges on my darkroom prints from b&w 120 negatives. My assumption is, this may be caused by "surge" -- that is, an increase in development at the edge of the reels due to turbulence when agitating. I am using stainless steel tanks and reels, sometimes one 120 reel in a...

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