Recent content by Andreas

Just to make sure there are no mistakes here: The condenser is there to concentrate the light and give even illumination. It has no influence on the picture size on the baseboard. The focal length of the enlarging lens determins the picture size on the baseboard (for a given elevation of the...

I managed to get som time for experiments yesterday. I had found a large flexible magnifier of the kind they sell in book stores (mine was found in a shop specialising in helpuful devices for old people). This kind of magnifier is really a fresnel lens. I use them on the grond glass of my 9x12cm...

Hello Thomas, and all 138 users I'm working on the light source problem myself. I'm in the process of testing a setup with an opal globe from an old lamp (found it in my cellar, actually) and a small 205W halogen lamp inside it. At last try, i got within 1/3 of an f-stop fall off at the corners...

I have shot a lot of KB100, the 35mm equivavalent to PL100. It sure is grainier than T-max 400, and a lot cheaper. I never tried Pyrocat. Mostly I have used Rodinal, which is no fine grain develloper. But the grain is distinct, and I like the look of it. If you don't like it, you should go for...

If ou plan to toy around with several old lenses with different filter sizes, I strongly recomend to go for the old series filters with holders. Series filters can be found in a few different sizes, and the holders come in every imaginable size, both slip-on and screw-in. The idea is that one...

I haven't been on the forum for a long time, som I'm a bit late. but I hope this can be useful. My reprint of the Zeiss Ikon 1936 catalouge says that 668/2 is for the Maximar. 728/2 is for Zeiss Ideal. It's a pop-off back, quite different from the 668/2. It will only fit the Ideal and Ica...

Distar and proxar combined Here you have it all, both Distar and Proxar. I'm pretty sure you read it like this: Vertical column in the middle is, of course, the unaided 15cm Tessar. f (cm) is the resulting focal length with the supplemantary lens indicated on top of each column. V is the...

I'll try to post a photo, but am a little too busy right now. In the meantime, I can tell you that the Zeiss Ideal 9x12 holders have the number 726/7 stamped on their back. /7 is Zeiss's code for 9x12 size. they used /2 for 6,5x9 and /9 for 10x15. They used this system for the cameras too, with...

A warning concerning plate holders: Never buy a Zeiss (or Ica) ideal without holders! I have one (a lovely 9x12 camera with interchangeable lenses). But it can only use the very special clip-on holders made for this camera and no others! It has taken me several years to collect the 10 usable...

The Kodak film holders are nice if they fit your camera. The film sheaths will fit any plate holder. I don't find them difficult to load (but I have one that's too narrow). The best type I have tried are the Orwo holders. They have cutouts to make the film rest direktly aginst the stoppers for...

Hvis kameraet fokuserer for nær på filmen i forhold til det du ser på mattskiven, er uttrekket større med film enn med mattskiven på plass. Altså må uttrekket med mattskiven økes. Jeg synes det er klarere å tenke på uttrekkets størrelse enn å tenke mattskiven forover eller bakover.

Hvis kameraet fokuserer for nær på filmen i forhold til det du ser på mattskiven, er uttrekket større med film enn med mattskiven på plass. Altså må uttrekket med mattskiven økes. Jeg synes det er klarere å tenke på uttrekkets størrelse enn å tenke mattskiven forover eller bakover.

Thank you. I think I'll try it. From the drawings posted on S.K. Grimes's site, I have reason to belive it should work. But the clearing is very small, so I felt a bit uncertain. Andreas

I'm looking for a cheap shutter to mount the elements of an old 5,6/150 Symmar (the old convertible, not symmar S). I tried it in a Prontor Polaroid, but the rear elements protrude too far into the shutter and jams the apperture. It's a question of less than half a mm, but too far is too far...

OK. dette var kjappe svar. Jeg skjønner at forskjellen er reell. Da får jeg kjøpe ut fra hvilken film jeg vil bruke. Totalt sett (om jeg ikke binder meg til Foma) er kanskje 5x7 litt mer kurant? 12x16,5cm (halfplate) skal jeg ikke ha; filmutvalget er ikke imponerende der. Men, svensker: hvor i...