pico Posted July 15, 2015 Share #221 Posted July 15, 2015 (edited) Advertisement (gone after registration) anyway, may i push film on the middle of the film roll ?or worse, just for a frame or two? No. If you change the dial/iso anywhere on the roll, processing does not know it. You will have over or under-exposure depending upon what ISO you choose. Custom developing where you tell the processing people what frame you adjusted will cost you a fortune (due to development by inspection) and will not likely work out at all. For extreme latitude choose a C-41 process film. Google C-41. Edited July 15, 2015 by pico 1 Quote Link to post Share on other sites More sharing options...
Advertisement Posted July 15, 2015 Posted July 15, 2015 Hi pico, Take a look here I love my M7.... I'm sure you'll find what you were looking for!
sblitz Posted July 15, 2015 Share #222 Posted July 15, 2015 Pico is correct. But what u can do with color is shoot portra400 and use it as 400 indoors and shoot it 2stops overexposed develop at 400. Portra looks good over exposed. U can't go in the other direction 1 Quote Link to post Share on other sites More sharing options...
Doc Henry Posted July 15, 2015 Author Share #223 Posted July 15, 2015 Pico, Yes that's right, what I meant was to adapt to the present situation when you want to change Isos.For me , I develop myself film so it does not pose a problem, and I note in a notebook , poses numbers where I changed the Isos. Best Henry Quote Link to post Share on other sites More sharing options...
Doc Henry Posted July 16, 2015 Author Share #224 Posted July 16, 2015 (edited) Ummmm, no.... if you push the roll the lab should adjust the development time for specific frames, which is not possible. Most of the labs do development of the whole roll at the same "iso". The only solution I know is the stand development, for which concentration, time and temp is always the same, no matter what roll or iso have you set. I use to start a Tri-X at 400, then shot at 800, then 1600, again at 400 and then develop my self in Rodinal 1+100 for one hour, and magically all the frames are ok :-) Massimo, I talk with my personal experience of color and b&w development . I do not see any significant difference in the pictures by changing isos (400>800>400) in the same roll. and I'm happy to have the images taken in difficult conditions. You can tell me , use a flash but I don't like it ! One more experiment last week (see the thread "I like film" ) during a wedding (inside and outside the church ). 400>800 http://www.l-camera-forum.com/topic/205842-i-like-filmopen-thread/?p=2853912 http://www.l-camera-forum.com/topic/205842-i-like-filmopen-thread/?p=2848664 800>400 http://www.l-camera-forum.com/topic/205842-i-like-filmopen-thread/?p=2848876 In the notice of Tetenal C41, is noted that the change of Isos do not change development time! Best Henry Edited July 16, 2015 by Doc Henry Quote Link to post Share on other sites More sharing options...
MaDeVa Posted July 16, 2015 Share #225 Posted July 16, 2015 Doc, I have no esperience in color and C41 development, but only on std B&W dev. With Tri-X or any other B&W film, if you change the ISO you need also to change the time or temp or concentration. Here is for example the chart for the Tri-X in Rodinal: assuming to mantain fixed concentration (1+50) and temp (20C), the time goes from 13.5 min if ISO is 400 to 16min for ISO800 till 18.5 min for ISO 1600. When I change the ISO in the middle of the roll I develop in R09 1+100 for 1 hour, semi stand (1 min agitation at the beginning, 1 min every 30 minutes) and I get all the frames correctly developed. Cheers, Massimo 2 Quote Link to post Share on other sites More sharing options...
Doc Henry Posted July 17, 2015 Author Share #226 Posted July 17, 2015 Massimo, thanks for the chart very useful Note that the dilution varies and also changesI must be careful Best Henry Quote Link to post Share on other sites More sharing options...
MaDeVa Posted July 17, 2015 Share #227 Posted July 17, 2015 (edited) Advertisement (gone after registration) Massimo, thanks for the chart very useful Note that the dilution varies and also changes I must be careful Best Henry Henry, you are very welcome.The chart is a screen shot of the Massive Chart from Digitaltruth, her the link http://www.digitaltruth.com/devchart.php?Film=Tri-X+400&Developer=Rodinal&mdc=Search&TempUnits=C Basically you have 3 parameters (time, concentration, temp) that you can change, for example at ISO 800 with 1+50 concentration, you develop in 16 minutes at 20C or in 13 minutes at 23C. Note that 13 minutes at 20C is the formula for ISO 400 with 1+50, this means that increasing the ISO you need more time or more temp to get the correct development, of course always with 1+50 concentration. And if you never tried the stand development, I invite you to do it , you will be happy with the results. Here a link with the workflow http://jbhildebrand.com/2011/tutorials/workflow-tutorial-2-stand-development-with-rodinal/ Cheers, Massimo Edited July 17, 2015 by MaDeVa 1 Quote Link to post Share on other sites More sharing options...
Guest Posted July 17, 2015 Share #228 Posted July 17, 2015 The past two pages this thread has turned from an M7 thread to a "share your pictures and film technique" thread. Am I the only one a bit annoyed by this? Starting a new thread isn't that hard... Quote Link to post Share on other sites More sharing options...
pico Posted July 17, 2015 Share #229 Posted July 17, 2015 (edited) Once upon a time some cameras used two cassettes, the factory one and another on the take up spool. And there was a film slicer in the body so you could snip a roll, wind it into the take up for separate processing. The feature goes way back to Exacta and more recently in Contax. History lesson over. Edited July 17, 2015 by pico Quote Link to post Share on other sites More sharing options...
erl Posted July 17, 2015 Share #230 Posted July 17, 2015 Ah! I remember that Exacta. I worked, briefly, with one. Ergonomically it was horrendous, but on a tripod it was fine. I used that cutter function regularly as my job at the time was to make slides, (B&W and col) at short notice for lecturers. I was always slicing two or three frames to process 'now please'. Quote Link to post Share on other sites More sharing options...
Paul Verrips Posted September 1, 2015 Share #231 Posted September 1, 2015 I bought myself today a second M7, a "Test Camera the Netherlands" as a backup camera. I'm very happy with it ! [/url] 9 Quote Link to post Share on other sites More sharing options...
Doc Henry Posted September 2, 2015 Author Share #232 Posted September 2, 2015 Paul , thanks for sharing ! it seems new. Congratulations Cameras with flag must be limited series. Good photos. Best regards Henry Quote Link to post Share on other sites More sharing options...
MaDeVa Posted September 2, 2015 Share #233 Posted September 2, 2015 (edited) Paul , thanks for sharing ! it seems new. Congratulations Cameras with flag must be limited series. Good photos. Best regards Henry Congrats for your new entry, it looks really nice.If not wrong, when the M7 was launched Leica made 1 camera for each distributor with the flag of its nation for demo/test. They were not made for sale, but I have seen also the one with Italian flag on sale on eBay (made for Polyphoto). Regards, Massimo Edited September 2, 2015 by MaDeVa 1 Quote Link to post Share on other sites More sharing options...
Sjauch Posted September 4, 2015 Share #234 Posted September 4, 2015 (edited) Started out with a M6ttl. Picked up this a little while after and like it more than the M6. I'm definitely faster in getting the shot I want due to the AE option. Edited September 4, 2015 by Sjauch 1 Quote Link to post Share on other sites More sharing options...
philipus Posted September 6, 2015 Share #235 Posted September 6, 2015 This is a very nice thread but why hasn't it merged with the original one? It would be nice to have all M7 posts in one thread. 1 Quote Link to post Share on other sites More sharing options...
Paul Verrips Posted September 10, 2015 Share #236 Posted September 10, 2015 Congrats for your new entry, it looks really nice. If not wrong, when the M7 was launched Leica made 1 camera for each distributor with the flag of its nation for demo/test. They were not made for sale, but I have seen also the one with Italian flag on sale on eBay (made for Polyphoto). Regards, Massimo Correct! There were 15 M7's "Test Camera the Netherlands" made. Scandinavian version 30 pieces and German version 60 pieces. Italy had also about 30 pieces. There are also Summicron 35/50/90 lenses with flag. I prefer my black M7 with silver Summicrons. Quote Link to post Share on other sites More sharing options...
colonel Posted September 21, 2015 Share #237 Posted September 21, 2015 I'm back What a beauty. Not a scratch on her. I like a well used M of course but this must have been lying on a shelf since 2004. Bonus was the Orange box sticker saying "new RF" - not bad for a 2885 Luckily everything is smooth and seems to work fine 6 Quote Link to post Share on other sites More sharing options...
gberger Posted September 21, 2015 Share #238 Posted September 21, 2015 Any comments about that Zeiss Distagon 1.4/35? Quote Link to post Share on other sites More sharing options...
colonel Posted September 22, 2015 Share #239 Posted September 22, 2015 Any comments about that Zeiss Distagon 1.4/35? If you don't mind the size and weight then the sharpest and contrastiest 35mm ever. At f1.4 it has more micro-contrast and sharpness then I have ever seen. As I came from the Voigtlander 35mm f1.2 ii (an excellent lens but with much worse corners and soft below f1.8) the weight feels fine to me I used the FLE for a bit and I slightly prefer the FLE ergonomics. Also the FLE is just as sharp in the centre. But for across the field there is nothing quite like the Zeiss. On film the difference is smaller. The Voigtlander is warmer and more classic, the FLE is more ethereal but if you regularly use f1.4 and do as much buildings as people you will appreciate the Distagon. best rgds 2 Quote Link to post Share on other sites More sharing options...
colonel Posted October 1, 2015 Share #240 Posted October 1, 2015 I know its Kitsch and taken on an iphone but I love this: Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! 4 Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/233570-i-love-my-m7/?do=findComment&comment=2897268'>More sharing options...
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