safe haven for tiny formats

[Michael Lloyd]

Check the light trap groove between the film back and body. If the two small tab film back hooks are loose, the gap between body and film back can light leak. If the light trap grove is worn from film back on-off cycles without care of mounting the film back to body the light trap groove (near the camera ad film back bottom) can bet banged up, another possible cause of the light leak.

It is possible the light leak is from the dark slide area, this is less common, still possible.

Previously encountered all three types of light leaks on Hasselblad V series.


Bernice

I have Delta 100 film in the backs now. I guess I'll have to sacrifice it to replace the dark slide light traps if inspecting the other bits doesn't pan out. Backs are hard to come by these days.

[Richard Wasserman]

Highland Park, Illinois—Ready for anything

[Tin Can]

Richard

Do you remember the small tank that was on Sheridan heading out of HP?

and the Nike siloes on the Lakefront at Belmont?

That became a Shotgun Trap Range?

I used to go to Manitowoc Harbor for the Maritime museum, that showed Submarines made there and more

I watched them put U-505 in a hole at https://www.msichicago.org/press/pre...505-submarine/

I miss most the Replica Viking Ship that sailed to Chicago and stayed. I used to live right next to it, twice! Once in luxury and once is poverty

Highland Park, Illinois—Ready for anything

[Ari]

Here's another B&W conversion attempt using a different method that I rather like. On the other hand, there are a lot of variables in this method, maybe it's too much.

This is one result:



The method is described here (lots of FFing to do, he's a talker):

[Peter De Smidt]

Yep, that's a powerful method. As he notes in the video, though, be very careful with those color controls adding artifacts, particularly banding.

Here's another step that can help when there isn't a lot of color in the but you want to have lot's of tonal separation in the BW image. Before conversion, convert the color space to LAB. Make a curves adjustment layer. Increase the slope of the A and B channel to expand the color variations, keeping the middle of the line crossing the middle of the graph. Often just moving the bottom endpoint to the right one block, and the top endpoint to the left one block, works well. You're not trying to make the image look good at this step. You're just trying to increase variation so that the color adjustment have more to work with when you convert to BW. Again, this is likely only useful when there not much color in the scene.

[Ari]

Thanks, Peter, very helpful.
I'm tempted to skip one or two of those steps, or maybe just keep the adjustments to a bare minimum, because at some point, the artifacts jump all over the screen.
I'd like to see your LAB conversion process with a real image., so I'm starting a new thread here: https://www.largeformatphotography.i...71#post1636971
Hopefully you can find some time to post there in the next while. Thanks!

[Richard Wasserman]

Richard

Do you remember the small tank that was on Sheridan heading out of HP?

and the Nike siloes on the Lakefront at Belmont?

That became a Shotgun Trap Range?

I used to go to Manitowoc Harbor for the Maritime museum, that showed Submarines made there and more

I watched them put U-505 in a hole at https://www.msichicago.org/press/pre...505-submarine/

I miss most the Replica Viking Ship that sailed to Chicago and stayed. I used to live right next to it, twice! Once in luxury and once is poverty

I do remember these things and more—I'm old too!

The Viking ship is now in Geneva, Illinois and is being conserved and is open to the public.

https://vikingship.us/

[Peter De Smidt]

Here are some photos from yesterday in Fond du Lac:

[Richard Wasserman]

From yesterday's walk

[Peter De Smidt]

Good one, Richard.