View Full Version : Blurry Contact Prints
gonzo74
04-20-2009, 10:08 AM
Hello all,
I finally tried out printing for the first time last night, and wanted to start with contact prints. The problem, as the title gives away, is that they all turned out blurry. Pretty much unusable. I'm using a Focomat enlarger with a 150 watt bulb. I had the lens opened to 2.8; I have my negatives in the clear protective sleeves and used a Patterson contact printer. The paper is Foma 311 and I used Agfa Neutol Plus at a normal 1+4 dilution. I initially exposed for 10 seconds and developed recommended 60-90 seconds. After the first sheet came out blurry I did try variations of exposure and development. If any one has any suggestions I'd be really grateful, not sure where I am going wrong here...
(The one thing I noticed is that there is no suggested exposure time for the Fomaspeed, is this usual???)
archphoto
04-20-2009, 10:30 AM
I would take the negatives out of the sleeves and have some pressure onto the neg's and paper.
Check out with the lights on (without paper) if your neg's lay flat, otherwise you get unsharp results.
Peter
Photo Engineer
04-20-2009, 10:31 AM
The negative should be emulsion to emulsion with the contact paper, and there should be no protective sleeve in order to get good, sharp contact prints.
The thickness of the sleeve is enough to blur the image.
PE
gonzo74
04-20-2009, 11:11 AM
Ok, then I'll most definitely try it without the plastic sleeve. Is this how it is usually done? I've always read that most people use the plastic to protect the negatives, plus it seems easier to line up the negatives with the paper if they are all in the sleeve. Does my exposure time sound right? I couldn't find information on this paper specifically, thanks again for helping out!
It is definitely easier to line up the negatives using the plastic sleeve, but as your responses so far indicate, negatives in direct contact with the paper will produce sharp proofs. It may seem fussy at first, but with practice it gets easy to lay out your negatives directly on the paper. Having used both methods of proofing, I now use the direct contact method, and have bypassed plastic storage sleeves.
David William White
04-20-2009, 11:22 AM
I just lay them out on the paper and put a sheet of glass over them to press them flat (glass from an 8x10 or 11x14 picture frame). Set enlarger to project well beyond the area you need to cover (so there is little light fall-off). Use grade 2 filter if you have.
Find the minimum time for each film type to just get to maximum black through the film rebate (edges) for a mid-aperture exposure via test strip. Record aperture, time, enlarger height, and contrast filter. Use these settings each time, so you don't have to go through the test strip thing each time. If you standardize like this, then a quick examination of the contact will give you hints about how to make your projection print.
I usually try to make contacts as soon as the film is dry, but before I sleeve them -- when I'm organized.
(If contact prints are too dark, consider increasing your in-camera exposure. If prints are too light, consider decreasing your in-camera exposure.)
keithwms
04-20-2009, 11:32 AM
With most papers, you can use a red safelight or red filter over your enlarger lens so that you can see what you're doing when you line the film up. I do that to get the framing just right, if I want clean white borders.
Yes, I always do emulsion-to-emulsion, and for bendy negs I weigh them down with a thick piece of clean glass. Everything needs to be dust free, of course.
Rather than pushing and pulling negs in and out of sleeves for successive prints, I move the neg onto fresh paper right after each exposure. Once I get things about right then I just go quickly from one print to the next.
Oh and having your enlarger at f/2.8 probably isn't such a good idea, why not stop it down quite a lot, say f/16 or more, to produce a more collimated beam. That will also improve sharpness. (And, in my experience, a contact print done through a protective sleeve shouldn't be terribly unsharp if you do have a well-collimated light source.)
Do take the time to track down any light leaks that might give you some non-collimated exposure.
Jon Shiu
04-20-2009, 11:39 AM
I always do the proof sheets with the negs in the printfile sleeves and have no problems with sharpness there. Check that your glass is providing good pressure on the negs/paper.
Jon
gonzo74
04-20-2009, 11:48 AM
[QUOTE=David William White
Find the minimum time for each film type to just get to maximum black through the film rebate (edges) for a mid-aperture exposure via test strip. Record aperture, time, enlarger height, and contrast filter.
[/QUOTE]
Thanks! I wasn't aware that I should use a filter, I do have them so I will try it out. Also, did I understand correctly, that each film type has a recommended exposure time? Or did you mean each paper type?
gonzo74
04-20-2009, 11:54 AM
With most papers, you can use a red safelight or red filter over your enlarger lens so that you can see what you're doing when you line the film up. I do that to get the framing just right, if I want clean white borders.
Yes, I always do emulsion-to-emulsion, and for bendy negs I weigh them down with a thick piece of clean glass. Everything needs to be dust free, of course.
Rather than pushing and pulling negs in and out of sleeves for successive prints, I move the neg onto fresh paper right after each exposure. Once I get things about right then I just go quickly from one print to the next.
Oh and having your enlarger at f/2.8 probably isn't such a good idea, why not stop it down quite a lot, say f/16 or more, to produce a more collimated beam. That will also improve sharpness. (And, in my experience, a contact print done through a protective sleeve shouldn't be terribly unsharp if you do have a well-collimated light source.)
Do take the time to track down any light leaks that might give you some non-collimated exposure.
Keith, thanks. I was unsure as to the correct setting, I initially used f/2.8 as it provided the largest light source and would decrease the amount of time that I needed to develop the print. I also read (can you tell I'm learning all this stuff on my own...thank goodness for APUG) that I should set the enlarger at its highest setting, meaning as far as it will go on its column. Is this incorrect? Do I need to bring it back down once I have placed the negatives underneath as long as there is enough light to cover the outer edges?
gonzo74
04-20-2009, 11:58 AM
I always do the proof sheets with the negs in the printfile sleeves and have no problems with sharpness there. Check that your glass is providing good pressure on the negs/paper.
Jon
Jon is this a particular type of sleeve that is considered better for this kind of thing? I specifically bought these clear sleeves so that I could use them for printing. I also went with the Patterson printer because it really keeps them secure against the glass. Ok, so from all the responses. I assume that I need to try something different with the negs (with the exception of the f-stop) and it doesn't have to do with the processing. I had initially thought that I had overcooked it or something but it sounds like 10 seconds is an alright start.
winger
04-20-2009, 12:10 PM
I do my contacts with the negs in Printfile brand sleeves and don't have a problem with sufficient sharpness for the purpose. The key is to use a decent (and clean) piece of glass to hold them down. I have glass from a frame and just press the edges outside the paper as it exposes. I never had good results using the contact printers we had in school. The foam backing never really allowed good pressure, I'd guess.
If I were doing a contact print as a final print, I wouldn't use the sleeves.
Timing wise, I have the enlarger set so it's just outside the size I need, with an empty neg carrier in it and focused. I use a #2 contrast filter, f8 and 8 seconds. If I've underexposed the roll, sometimes I'll go to f11.
I develop my paper by time, not appearance. It's easier to be consistent that way. For RC, I use 1 minute and for fiber I use 2 minutes (I'm using Ilford paper and developer, so it could be different for different brands - read the info sheets on what you're using).
Jon Shiu
04-20-2009, 12:25 PM
Hi, if your sleeves are clear, there shouldn't be any problem printing contact proofs with the negs in them.
Jon
gonzo74
04-20-2009, 12:40 PM
Hi again Jon, I did just check the package and it does state that they are for use in contact printing. I will try all the great suggestions and see what happens. (In the meantime, I did find the Printfile brand in a shop here, so I can always give that a try if anything...). Thanks again all!
David William White
04-20-2009, 12:48 PM
Thanks! I wasn't aware that I should use a filter, I do have them so I will try it out. Also, did I understand correctly, that each film type has a recommended exposure time? Or did you mean each paper type?
Yes, in addition to the film, different paperstocks can have different exposure times for contact and projection prints, and further beware that different papers respond differently to contrast filtration. Most of my printing is done with Ilford contrast filters on Ilford MG paper.
Anyway, if you do the contact prints using a #2 filter, then you get some idea what filter you need for your projection print (more or less contrast), so it's helpful. Also, if contact prints are excessively flat, then maybe increase your film development time. If too dark, maybe increase your film exposure time (in-camera). Contact prints can be very helpful from one end to the other.
To see what different filmstocks do, take a sections of unexposed film (developed & fixed so you see "base fog") of different types, lay them up for contact printing, then do a step test (t, 2t, 3t, 4t,...) and you'll notice that some filmstocks get to maximum black faster than others.
But you are right, different papers will respond differently and a survey of those you use would prove helpful.
I know this sounds like a lot of dicking around for just contact prints, but this sort of craftwork pays back enormously when it comes to acheiving repeatability and reliability in exposure, film development, and of course, the whole point, the final printing.
I'm in the middle of this, too.
Mike Crawford
04-20-2009, 12:51 PM
Is it possible the negatives are overexposed or on the dense side? I find the Printfile sleeves fine for contacting as long as the negs are a 'normal' density. However, if the negs are on the heavy side, they seem to look a bit difused when contatcted through the bag, especially 35mm which is on a thicker base. Also, the edge of the frame and the rebate tends to bleed a bit. If so, I will usually re-contact those ones out the sleeves.
David William White
04-20-2009, 01:00 PM
Is it possible the negatives are overexposed or on the dense side? I find the Printfile sleeves fine for contacting as long as the negs are a 'normal' density. However, if the negs are on the heavy side, they seem to look a bit difused when contatcted through the bag, especially 35mm which is on a thicker base. Also, the edge of the frame and the rebate tends to bleed a bit. If so, I will usually re-contact those ones out the sleeves.
Are they in 'contact', ie. do you put a piece of glass over top?
gonzo74
04-20-2009, 01:09 PM
Is it possible the negatives are overexposed or on the dense side? I find the Printfile sleeves fine for contacting as long as the negs are a 'normal' density. However, if the negs are on the heavy side, they seem to look a bit difused when contatcted through the bag, especially 35mm which is on a thicker base. Also, the edge of the frame and the rebate tends to bleed a bit. If so, I will usually re-contact those ones out the sleeves.
Hi Mike,
The negatives look really nice and I think that they fall into the 'normal' density category. I compared the negs I developed to those I had developed some time ago before I started doing it myself, and there is a I couldn't find too much of a difference. I think that they are ok but to be sure I will try one set of negs outside of their sheet and see what happens.
gonzo74
04-20-2009, 01:13 PM
Are they in 'contact', ie. do you put a piece of glass over top?
Hi David,
Yes, I specifically have a Patterson contact printer that has a piece of 'non-glare' glass and a piece of foam. I placed the paper emulsion side up, and negs emulsion side down and then you have to press a lock thingy and it squishes everything in there pretty tight. I decided to go this route instead of just a piece of glass because I read about the importance of this sandwich, that should give sharp contact prints. Just for comparison, I phoned the photo shop that previously did my development and from which I bought these supplies. They use the same printer and negative sleeves when printing. Their stuff looks great.
Akki14
04-20-2009, 01:18 PM
I wondered why i was getting blurry contact prints once then I realised the paper was the wrong way up. Long exposure times too :D