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Thread started 23 Jul 2009 (Thursday) 22:48
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The Film Thread (Red Ring not Required) A place for Analog Photography Nuts to Talk

 
DinosaurioAllie
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Jun 21, 2011 21:56 |  #556

I've been in the darkroom for a few days, and I've noticed the problem with my enlarger that it will project it with serious vignetting around the bottom corners. The top corners are perfectly fine. I've adjusted pretty much everything on the enlarger, and even my instructor doesn't understand why it's projecting round along the bottom corners. Anyone know what the problem is?


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Tony-S
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Jun 21, 2011 23:21 |  #557

If it's a condenser enlarger, make sure your condenser lenses are properly seated and at the appropriate height above the negative. What enlarger are you using and what film format?


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TheBurningCrown
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Jun 22, 2011 00:04 |  #558

DinosaurioAllie wrote in post #12636010 (external link)
I've been in the darkroom for a few days

So that's where you went :lol:.

Tony-S wrote in post #12636446 (external link)
If it's a condenser enlarger, make sure your condenser lenses are properly seated and at the appropriate height above the negative. What enlarger are you using and what film format?

I agree with this and the questions.

Also - are the images sharp all the way across at wide-ish apertures (looking for a flat lens plane)? Obvious question: is there anything obstructing the lens? Does this happen regardless of the film holder used?


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krb
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Jun 23, 2011 21:58 |  #559

My first time push processing.
Shot this while walking around at night a few months ago and developed it last night in TMax developer and pushed 2 stops.

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dilonious
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Jun 24, 2011 11:27 |  #560

First roll of film in a LONG time. rolleicord 3.5 xenar, 400NC. Crappy scans.. im gonna try to do a better job scanning/removing dust next go-around.

IMAGE: http://farm6.static.flickr.com/5235/5865657630_99e837c851_b.jpg
IMAGE LINK: http://www.flickr.com …s/goooooooooo/5​865657630/  (external link)
Sara (external link) by beautyindbrakdwn (external link), on Flickr

IMAGE: http://farm4.static.flickr.com/3115/5865140587_b1c573f502_b.jpg
IMAGE LINK: http://www.flickr.com …s/goooooooooo/5​865140587/  (external link)
Kevin Raymes (external link) by beautyindbrakdwn (external link), on Flickr

IMAGE: http://farm4.static.flickr.com/3261/5865659770_9873339d59_b.jpg
IMAGE LINK: http://www.flickr.com …s/goooooooooo/5​865659770/  (external link)
Jones (external link) by beautyindbrakdwn (external link), on Flickr

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Tony-S
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Jun 24, 2011 11:47 |  #561

dilonious wrote in post #12650940 (external link)
Crappy scans.. im gonna try to do a better job scanning/removing dust next go-around.

Does your scanner have digital ICE or equivalent?


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bemerick
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Jun 24, 2011 12:03 |  #562

wow, that is really bad (dust/hair). Are you scanning negatives? If just prints, wipe each with microfiber cloth before scanning. I did 9000 family photos last year, it really helps


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dilonious
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Jun 24, 2011 12:14 |  #563

Tony-S wrote in post #12651042 (external link)
Does your scanner have digital ICE or equivalent?

I just figured out it does :) I'll probably re-scan.

they were negatives.. it was my fist time using the scanner and first time scanning negatives..:rolleyes:


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Tony-S
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Jun 24, 2011 12:24 |  #564

Use it on color negatives, but not B&W negatives.


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jasongraaf
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Jun 24, 2011 19:17 |  #565

Why is that?

Love the last shot in that set, by the way!


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krb
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Jun 24, 2011 20:37 |  #566

ICE works by sending shining an IR light through the negative. Dust and hair blocks the IR light but the film allows IR to pass through because color film is transparent in the IR spectrum. This way the ICE can compare the two images and remove the bad stuff.

It doesn't work on B&W film because the film is not IR transparent.


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jasongraaf
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Jun 24, 2011 22:34 as a reply to  @ krb's post |  #567

Huh, I didn't know that. Thanks for the info!


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DinosaurioAllie
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Jun 26, 2011 02:04 |  #568

Tony-S wrote in post #12636446 (external link)
If it's a condenser enlarger, make sure your condenser lenses are properly seated and at the appropriate height above the negative. What enlarger are you using and what film format?

The enlarger was a Besseler 23C II(I believe). Film format was 120. The thing that was most confusing for me was that the enlarger was assigned and only ever used for medium format, as it was clearly labeled across the counter in front of it "MED FORMAT ONLY". Which means it should have been set up at least close to proper 120 setting.
I don't have access to the enlarger now, as the classes have finished. But I will again have access to it in July when my advanced sessions start. The teacher and I are going to stay after on the first day to fix whatever the heck is wrong with it.

TheBurningCrown wrote in post #12636643 (external link)
So that's where you went :lol:.


I agree with this and the questions.

Also - are the images sharp all the way across at wide-ish apertures (looking for a flat lens plane)? Obvious question: is there anything obstructing the lens? Does this happen regardless of the film holder used?

The images looked perfectly sharp at f/2.8(as that's what I focus on) and printed perfectly fine at f/11. I didn't attempt to use a different film holder, as I assumed that it shouldn't make a difference as it still vignetted even without a film holder in. Here's a crappy cell phone picture of the one print I didn't fix it on.(I'll scan them tomorrow)
Nope, don't adjust your monitors, and it's not glare. That's how they were printing. :confused:

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: 400 | MIME changed to 'text/html'

Canon 7D | Canon 100mm f/2.8 | Canon 40mm f/2.8 | Mamiya RB67 | Mamiya Sekor 90mm f/3.8 | http://www.flickr.com/​mosbeckphotography (external link)
"There's a common misconception that all photographers want to photograph famous people, to be a paparazzi. To me that's like selling my soul. My photographs give thanks to people who have helped me out. Thats not selling my soul, that's gaining it." -Bob Campagna

  
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Tony-S
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Jun 26, 2011 07:04 |  #569

jasongraaf wrote in post #12653656 (external link)
Huh, I didn't know that. Thanks for the info!

You can use dICE on chromagenic B&W but not conventional B&W.


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TheBurningCrown
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Jun 26, 2011 17:40 |  #570

DinosaurioAllie wrote in post #12658696 (external link)
The enlarger was a Besseler 23C II(I believe).

Hm. And you've tried these negatives on other enlargers and they print correctly (just making sure)?

The other idea I came up with was that the mixing box was somehow screwed up, but I'm pretty sure the Besseler is a condenser, right?


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The Film Thread (Red Ring not Required) A place for Analog Photography Nuts to Talk
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