Light-piping with Tmax400?

[nephilim]

Hi there,

I have been shooting with my (new to me) M7 for two weeks and also tried TMax400 for the first time. Below are two consecutive shots from the last roll, with the sun close to the edge of the frame and also visible in the next one. I haven't seen this with TriX but only with a weird reversed Rollei colour film. I guess this glow is due to light-piping but I didn't expect it to see with this film. Or could it be a camera defect? Maybe I'm about to kill the cloth shutter with this kind of shots anyway? 😉

Cheers,
Torsten

 

[Mablo]

My first impression is a light leak. Sometimes you only see the leak when the light comes from a certain angle.

 

[Todd.Hanz]

odd, looks like some sort of flare to me though, what lens?

Todd

 

[nephilim]

The lens is the Summilux 50/1.4 ASPH (I guess with the hood extended). So you wouldn't expect that strong sun light finds its way through the carrier to the next frame?

 

[antiquark]

On the negative itself, is it visible between the frames? If yes, maybe it's leaking from the sunny part of the adjacent frame.

 

[Todd.Hanz]

The Asph. versions hardly ever flair so maybe it is some sort if light leak or hole in the curtain. it seems consistent in the same area of the frame.

Todd

 

[nephilim]

Yes, it's a nice dark blob sitting almost exactly between the frames. I'll try to scan this portion again to give you an impression.

 

[nephilim]

Todd, I haven't noticed a hole in the curtain and this is the only pair of shots affected by this issue.

 

[nephilim]

Ok, this is a scan of the space between the frames. The sun is sitting right on the end of the left frame. I'd be very reliefed if this is a film issue (and user error, of course) and no camera fault.

 

[antiquark]

I've seen an identical thing with my pictures once, the sun leaking from the edge of one image to the next.

I would assume it's that, because the odds of an external light leaking appearing at the precise place that the sun appeared on your negative seems highly unlikely.

 

[J J Kapsberger]

Could it be the effect of a roll improperly loaded onto the developing reel, which by coincidence shows up in a highlight area?

 

[antiquark]

Could it be the effect of a roll improperly loaded onto the developing reel, which by coincidence shows up in a highlight area?

Possibly, but there are 36 frames, it's quite the coincidence that the leak appeared where the sun was! 🙂

Here's another thread with a similar flare. One comment is to check the pressure plate.
http://www.rangefinderforum.com/forums/showthread.php?t=83615

 

[nephilim]

One thing I'll do is to check the pressure plate as soon as the current roll is full.

 

[Rob-F]

Why not try a couple of blank frames with the lens cap on, and the camera outdoors in the sun? If you the problem then, you know it's a light leak. That might, uh, shed some light on the problem (Sorry).