<![CDATA[Large Format Photography Forum - Darkroom: Film, Processing & Printing]]> http://www.largeformatphotography.info/forum/ Traditional film, film processing, lab processing, chemistry, paper, traditional printing processes and conservation. en Tue, 21 May 2013 15:45:48 GMT vBulletin 15 http://www.largeformatphotography.info/forum/images/misc/rss.png <![CDATA[Large Format Photography Forum - Darkroom: Film, Processing & Printing]]> http://www.largeformatphotography.info/forum/ Ilford 2013 Special Order window open until end of June http://www.largeformatphotography.info/forum/showthread.php?103553-Ilford-2013-Special-Order-window-open-until-end-of-June&goto=newpost Tue, 21 May 2013 15:43:19 GMT Folks, Link to the Ilford announcement on special order window now open. I would guess that the dealers have pricing up for this. Delivery is... Folks,
Link to the Ilford announcement on special order window now open. I would guess that the dealers have pricing up for this. Delivery is in September.
Ric

http://www.ilfordphoto.com/pressroom/article.asp?n=164 ]]> Richard Raymond http://www.largeformatphotography.info/forum/showthread.php?103553-Ilford-2013-Special-Order-window-open-until-end-of-June <![CDATA[How is "double coating" in pt/pd]]> http://www.largeformatphotography.info/forum/showthread.php?103543-How-is-quot-double-coating-quot-in-pt-pd&goto=newpost Tue, 21 May 2013 04:59:51 GMT In Platinum and Palladium printing... when I double coat the art paper; does it mean coat and let to dry and coat again? Or just pore and coat and... In Platinum and Palladium printing... when I double coat the art paper; does it mean coat and let to dry and coat again? Or just pore and coat and pore again and coat? ]]> Nasser http://www.largeformatphotography.info/forum/showthread.php?103543-How-is-quot-double-coating-quot-in-pt-pd 8x10 Efke http://www.largeformatphotography.info/forum/showthread.php?103528-8x10-Efke&goto=newpost Mon, 20 May 2013 20:38:40 GMT Well, I finally did it. Developed 8x10 film. Efke 100, R09 One-shot 1:25, 3 sheets in a Jobo 3004, hand-rolled pretty slowly and slightly "wobbly". Came out absolutely flawless. What a sight... Just thought I'd share this with all of you. ]]> LF_rookie_to_be http://www.largeformatphotography.info/forum/showthread.php?103528-8x10-Efke E6 or C41? Choices? Choices? Choices?... http://www.largeformatphotography.info/forum/showthread.php?103521-E6-or-C41-Choices-Choices-Choices&goto=newpost Mon, 20 May 2013 14:34:28 GMT Please could some kind soul with experience in these matters come to my aid? There is some beautiful and inspiring colour work from photographers... Please could some kind soul with experience in these matters come to my aid?

There is some beautiful and inspiring colour work from photographers using large format.

Up to now, in large format, I have only worked with monochrome films.

It would be great to make some colour photographs, but the cost of film AND processing makes it a very expensive option. The costs might come down enough to put colour within reach if the sheets are processed at home like my monochrome sheets.

What process is likely to be the most successful and hopefully cost-effective?

Would you choose E6 or C41?

Which films and which chemistry would be the best way forward please?

Thank you.

Regular Rod ]]> Regular Rod http://www.largeformatphotography.info/forum/showthread.php?103521-E6-or-C41-Choices-Choices-Choices Develop 4x5 tmax with tmax developer ? http://www.largeformatphotography.info/forum/showthread.php?103509-Develop-4x5-tmax-with-tmax-developer&goto=newpost Mon, 20 May 2013 00:48:57 GMT Can I develop 4x5 tmax100 with tmax developer or do I need tmax rs developer ? I have a full gallon of tmax developer which has never been opened.... Can I develop 4x5 tmax100 with tmax developer or do I need tmax rs developer ? I have a full gallon of tmax developer which has never been opened.
If I shouldn't develop 4x5 tmax100 with tmax developer, whats the difference between the 2 developers ? I've done quite a bit of reading of the 2 developers
but can't quite figure it out ? I'm probably reading right over the answers ?

thanks--tom ]]> tjc51 http://www.largeformatphotography.info/forum/showthread.php?103509-Develop-4x5-tmax-with-tmax-developer Life expectancy of C41 Tetenal Colourtec solution http://www.largeformatphotography.info/forum/showthread.php?103503-Life-expectancy-of-C41-Tetenal-Colourtec-solution&goto=newpost Sun, 19 May 2013 23:00:24 GMT I exposed a couple of Portra 400 4x5 sheets on the weekend and developed them using Tetenal Colourtec solution that has been stored for about six... I exposed a couple of Portra 400 4x5 sheets on the weekend and developed them using Tetenal Colourtec solution that has been stored for about six months. The sheets came out blank :(, I did them seperately but got the same result for both. I stored the solution in the proper plastic well sealed bottles, not refrigerated and have used the solution on and off since mixing it. In between uses I fill the space in the bottle with butane gas. Is the solution too off or has something else gone wrong? If I hold the sheets up to a light I can see through them but there is no sign of an image, nothing at all. But the odd thing is the side with the emulsion on it still has that mocha opaque look to it when not held up to a light. I'm guessing it is the solution that is the problem but not sure.

Thanks ]]> Colin D http://www.largeformatphotography.info/forum/showthread.php?103503-Life-expectancy-of-C41-Tetenal-Colourtec-solution Developing old film with HC110 http://www.largeformatphotography.info/forum/showthread.php?103500-Developing-old-film-with-HC110&goto=newpost Sun, 19 May 2013 21:36:07 GMT I have some 5x7 film from the late 30's I shot earlier today, really, really thick stuff, almost about the thickness of 3 modern day 4x5 sheets stacked on top of one another. As usual when shooting old stuff I compensated 3 stops. I'm going to tray develop a sheet tonight in HC-110. Whats a good dilution to start with? I'll probably go with dilution "B" unless somebody suggests a better one?

And also I've never developed by inspection before. I have the Kodak green safelight, so what exactly do I look for? ]]> Shootar401 http://www.largeformatphotography.info/forum/showthread.php?103500-Developing-old-film-with-HC110 8x10 Copy Camera - What The HELL did I just buy? http://www.largeformatphotography.info/forum/showthread.php?103479-8x10-Copy-Camera-What-The-HELL-did-I-just-buy&goto=newpost Sun, 19 May 2013 11:28:36 GMT I think I'm picking this up next week:

http://www.ksl.com/index.php?nid=218...arch=&ad_cid=6

I'm trying to decide what to do with it. I'm thinking enlarger? Bigger camera? Something else?

I don't really need a copy-camera, but it's too cool to just pass up... ]]> michael slade http://www.largeformatphotography.info/forum/showthread.php?103479-8x10-Copy-Camera-What-The-HELL-did-I-just-buy Pt/Pd Paper experiment http://www.largeformatphotography.info/forum/showthread.php?103476-Pt-Pd-Paper-experiment&goto=newpost Sun, 19 May 2013 10:08:01 GMT Pt/Pd printers... How about we share -if do not mind- the characteristics and observation of what ever paper you use? Any comments would give me... Pt/Pd printers... How about we share -if do not mind- the characteristics and observation of what ever paper you use? Any comments would give me personalty a general idea, and I would compare it with my observation if am not wrong.

In my printing ex: Bergger cot-320 took 8 min, on the other side Arches platine took 6 min.

I knotes also Japanese Mullberry Papers (Kozo) have a tighter tonal range.

I really would appereciate your sharing of experience!

Nasser ]]> Nasser http://www.largeformatphotography.info/forum/showthread.php?103476-Pt-Pd-Paper-experiment Jumping to the water of Photogravure http://www.largeformatphotography.info/forum/showthread.php?103441-Jumping-to-the-water-of-Photogravure&goto=newpost Sat, 18 May 2013 10:13:45 GMT Hi,

I want to try Photogravure to get the feel of the process. Currently I'm in the exchange students program in Germany and have access to Intaglio workshop here with all the equipment needed for the printing part (including aquatint). Do you know an instructor for Photogravure in Germany (or any close by country)? (I already contacted Peter Moseley but he is not available at this time). If not, I thought of trying myself but have some questions:

Is it possible to use zinc plates instead of copper to save some moeny?
Do the acid baths must be ferric chloride or is it possible to work with nitric acid too?

If I make the tissue myself, what should be its dry/wet height?

On the web it seems everyone is using potassium dichromate bath to sensitize the tissue. Is it possible to use spirit sensitizing with ammonium dichromate like in carbon printing?

[I have little experience with carbon transfer and intaglio]

Regards,
Omer ]]> Omer Yair http://www.largeformatphotography.info/forum/showthread.php?103441-Jumping-to-the-water-of-Photogravure <![CDATA[Fomapan 100; reciproke failure already kicking in at "fast" speeds ?]]> http://www.largeformatphotography.info/forum/showthread.php?103440-Fomapan-100-reciproke-failure-already-kicking-in-at-quot-fast-quot-speeds&goto=newpost Sat, 18 May 2013 09:48:12 GMT Here is something which is bugging me for sometime, and I cannot figure it out: I have been shooting Fomapan 100 for quite some time now in 4*5,... Here is something which is bugging me for sometime, and I cannot figure it out:

I have been shooting Fomapan 100 for quite some time now in 4*5, at 50 Asa, souped in Xtol (actually Instant Mytol). As we all know Fomapan has a bad reciproke failure, requiring longer exposure times at 1 or even at 1/2 seconds.

Here is my problem: even shooting at 1/8 or 1/15 seconds I think I have a reciproke problem, that is, I see quite consistently that my shadow regions are too dark, ie underexposed.

I usually spot meter the important shadow area, and place that in Zone III (so for the final exposure I open up 2 stops). When using FP4+ this method worked quite well, but with Fomapan I end up with almost empty dark areas were I would have liked more detail.

Can it be reciproke failure ie if my exposure is say 1/8 for Zone V, its 1/2 for Zone III, and 1 for Zone II, reciproke territory.

Am I barking up the wrong tree and this is a misconception ?

Exposing more would not help since my times would get even longer (I already shoot at 50 ASA) and I get a bullet poof negative in the highlights and mid tones.

I might add that my negatives print fine on grade 2 1/2 when judged by de mid and high values.

Thanks for any insight,

Best,

Cor ]]> Cor http://www.largeformatphotography.info/forum/showthread.php?103440-Fomapan-100-reciproke-failure-already-kicking-in-at-quot-fast-quot-speeds Heating Pt/Pd solution before coating http://www.largeformatphotography.info/forum/showthread.php?103437-Heating-Pt-Pd-solution-before-coating&goto=newpost Sat, 18 May 2013 06:17:16 GMT Dear All, Does any of you hear about heating the Platinum/Palladium coating solution before coating the paper? And what is the advantage? Nasser Dear All,
Does any of you hear about heating the Platinum/Palladium coating solution before coating the paper? And what is the advantage?

Nasser ]]> Nasser http://www.largeformatphotography.info/forum/showthread.php?103437-Heating-Pt-Pd-solution-before-coating Camera/developement/printing log sheet. http://www.largeformatphotography.info/forum/showthread.php?103421-Camera-developement-printing-log-sheet&goto=newpost Fri, 17 May 2013 20:12:10 GMT A few weeks ago I found a really comprehensive log sheet for this. I thought that I had saved it but alas, I cannot find the saved file or where I... A few weeks ago I found a really comprehensive log sheet for this. I thought that I had saved it but alas, I cannot find the saved file or where I found it in the first place. I really need to start taking better notes and this would really help.

Thanks,

Paul ]]> ataim http://www.largeformatphotography.info/forum/showthread.php?103421-Camera-developement-printing-log-sheet Light streaks on HP5+ http://www.largeformatphotography.info/forum/showthread.php?103386-Light-streaks-on-HP5&goto=newpost Thu, 16 May 2013 14:26:20 GMT This is an anomaly that I'm trying to track down. Film is HP5+, 4x10, processed in PMK. This is the second type of mark like this I have had on my film recently. I mark my holders and thought it might have been a pinhole on the darkslide. I do not see one when I inspect it with a backlight. Have you guy seen this before? The streak is on the film, and is not on the duplicate exposure on the other side of the holder, so I know it's either with the darkslide or the holder.

This is the second time I've had this recently. Not an artifact from the scanner...it's not on the duplicate image on the other side of the holder.

EDIT: Some additional information-

These two negatives were shot within a week of each other and came from the same box of Ilford cut 4x10 film. Both negatives were processed in a JOBO 3005 drum with PMK that I mix myself. They were not processed together in the same run, but were processed with the same batch of PMK. These are the only two negatives out of hundreds of sheets of 4x10 that I've shot and processed lately. I continue to have total faith and confidence in Ilford products.

Thoughts?

lightstreakonHP5+.jpg

lightstreakonHP5+-4.jpg

lightstreakonHP5+-2.jpg

lightstreakonHP5+-1.jpg
Attached Images
]]> michael slade http://www.largeformatphotography.info/forum/showthread.php?103386-Light-streaks-on-HP5 <![CDATA[Mixing Ektar 100 & Fuji 160ns]]> http://www.largeformatphotography.info/forum/showthread.php?103378-Mixing-Ektar-100-amp-Fuji-160ns&goto=newpost Thu, 16 May 2013 08:11:48 GMT Is it okay to put Ektar 100 and Fuji 160ns in the same box when sending out for developing? It is the same process and chemicals for all negative... Is it okay to put Ektar 100 and Fuji 160ns in the same box when sending out for developing?
It is the same process and chemicals for all negative films, isn`t it? ]]> mark.s http://www.largeformatphotography.info/forum/showthread.php?103378-Mixing-Ektar-100-amp-Fuji-160ns