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christian_kolinski

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Posts posted by christian_kolinski

    Paper Exposure Calculator?

    in Classic Manual Film Cameras

    Posted

    <p>Patrick: Yes, it's a modification of Rick's. As he mentioned there are quite a few of this out there on the net, some giving credit (like the Tomsk), some not.<br>

    The "Tomsk" (as a scalable PDF) will print out more clearly tham Rick's bitmap, and the Sunny-11 matches better than the Sunny-16 here. Although I would get rid of those GOST numbers, as they making it ab bit confusing to use.</p>

    <p> </p>

    Russian LTM Lenses. To Buy, Or Not To Buy.

    in Leica and Rangefinders

    Posted

    Mr. Sixpack

     

    "We offered them freedom and a life of scientific freedom"?

     

    If hands over your head, the front of a riffle pressed to your back is a "offering", and "results are expected or your wife will be sorry" is freedom - then yes, the US offered those to the german scientists after WW2. If not - then you should talk to some of the Germans who have been "offered" to work for the US.

    Especially in the regions of Germany who have been sold to the reds in exchange for the US part of Berlin, the US-Army simply "took the head" - the engineers and scientists - with them before leaving. Most of them didn't left home on free will.

    IIIfBD/DRP??

    in Leica and Rangefinders

    Posted

    > "Deutsches Reichs Patent," (the "Imperial" designation) refers to the Third Reich (Empire.)

     

    Actually, it just refers to the German state - which was named "Deutsches Reich" from 1871 to 1943 ("Groߤeutsches Reich" 1943-1945).

     

    Some patents regarding the Leica date before the 3rd Reich, e.g. the focal plane shutter patented in 1927.

    Fixing Rollei retro 100 (agfa xpx 100)

    in Black & White Practice

    Posted

    Yes. The last Batch, which was unfortunately on the 35mm base. Which can easily seen from the colour of the base. Or the thickness. Or from the official anouncement of H. Sch�der (Maco/Mahn).

     

     

    No baloony there. Just a not so nice surprise for someone used to the APX100/120 and his clear base.

     

     

    And, as you can simply ask the Rodinal folks at A&O or Mr. Schain from Spur, the Rollei Retro is different from the last "real" APX regarding development times.

     

     

     

    They (Rollei/Maco) _may_ call this an "improved" version. It is a change in Emulsion whatsoever. Which - in this quantity - never occured while the film was sold as "Agfa APX".

    Fixing Rollei retro 100 (agfa xpx 100)

    in Black & White Practice

    Posted

    What film size do you use?

     

    The Rollei Retro may be APX, but unforunately it is not 100% pure APX. For example Rollei only bought 35mm-Stock rolls. And cuts them down to all sizes. So, the nice clear APX 100 medium format is gone - it's on the same, blue-gray base as the 35mm now. So it _may_ be the normal base-colour.

     

    And some German chemical-manufactures did tests on the Rollei Retro showing that it's almost like the APX but varies more (for example: the new Rodinal datasheet lists different development-times for APX and Retro)... maybe given to the fact that QC wasn't that much an issue during the insolvecy as it was before...

    jobo RO-Tank 4322 uniprofessial : inversion possible?

    in The Wet Darkroom: Film, Paper & Chemistry

    Posted

    The 4322 was just a 2200 with a magnet atached (conversion kit for making a 2200 a 4322 was available as #4304). So it's fine for inersion, although it needs a bit more liquid as other tanks. Which is quite nice for people developing in Rodinal 1+50 or D76 1+3.

     

    For rotation: 400ml (13,6 US oz.)

     

    For inversion:

     

    1 reel 35mm: 450ml (15 US oz.)

     

    2 reels 35mm: 800ml (27 US oz.)

     

     

    1 reel 60mm: 700ml (23,5 US oz.)

     

     

    1 Planset 6x9cm (sheet film): 750ml (25,5 US oz.)

     

    1 Planset 9x12cm (sheet film): 1000ml (34 US oz.)

     

    HTH

    Chris

    Perfect timing for Digital M introduction ??

    in Leica and Rangefinders

    Posted

    Well, during a guided tour at the Leica-Werk in Solms last weekend - I've seen it.

    Just a short time (we still don't know if that door was open by accident or on purpose) - but it was there, the new, digital Leica M8.

    The 0-Series is out there. Big testing at Leica (and propably all over the world).

     

    Digital. Crop 1.3. Same size of a M7, but 3mm thicker at the 2.5" LCD. All Leica-M lenses will fit. Finder and rangefinder should be the same as with the M7. No winding lever (motorized shutter).

     

    Unfortunately, they didn't mention a price, nor how many pixel it will deliver. Seems that will have to wait till the Photokina in fall. I'll be there to see it.

    Old, mysterious camera

    in Classic Manual Film Cameras

    Posted

    About the lens:

     

    sure it isn't a pre-set lens? Some of the older Praktica lenses had two rings for setting the aperture. Preset the first to the aperture you want (it won't close!), focus, and second ring closes the aperture to the value set by #1. So you could focus open, and close down fast without looking or counting clicks.

    What is the lastest on Agfa ?

    in Black & White Practice

    Posted

    Robert: "terminated" sounds harsh - especially as APX was only produced about twice a year. The last production run seemed to be early this year, so I haven't expected another run before fall. Now it could be earlier as the demmand was higher than expected (because everybody bought as much as he could...).

    6.45 folder

    in Classic Manual Film Cameras

    Posted

    When the first 6x4,5 folders came out 120 film had no numbers for 6x4,5cm, only for 6x6 (middle) and 6x9 (edge). So you had to use the two windows: wind till number in 1st window - take picture - wind to 2nd window... and so on. When 6x45 became more popular filmmakers started printing numbers for 6x45 on the oposite side of the 6x9 numbers. Later 6x45 cameras only have one red window.

     

    BTW: A lot of folders (for example my Zeiss Ikon Ikonta, Nettar and Adox Golf) state "use 6x9 film" although they are 6x6 or 6x4,5. Seems it was easier to remember than "use film type B-II".

     

    There are even cameras with three windows out there:Some multi format folders have one in the middle for 6x6 and two on the bottom for 6x45.

    Foma b&w slide kit and my experience

    in Black & White Practice

    Posted

    I've developed some film with the Foma-kit and results are fine till now. Film was Agfa Scala, Agfa APX (and those two are _not_ the same) and Foma 100R.

     

     

    First: Never,really never touch the film till it's dry. The process is long (about 45min) and quite rude to the film. It will weaken the best emulsion and no hardenig fixer or something else can prevent this. So don't touch, and use Mirasol or Photo-flow to help drying. Even better: use the stabilisation bath from C41 or E6.

     

    Second: minimize the washing times between the steps. For example: After the bleach you only need to wash till the water comes out almost clear (a little purple stain is ok).

     

    Keep the temperature at 20deg C. Films that work well at 20deg C may be ruined at 22deg C. BTDT.

     

    Dry at room themperature.

    New to submini

    in Minox/Miniature

    Posted

    I'm a user of both (Minox and Minolta 16 (MG, not II)).

     

    The Minolta 16 is a nice camera with - in my opinion - one downside: the lens. The Rokkor is a fine lens but why did they use it as fix focus? It's focused at about 2.5m so best results are recived if the main subject of your shoot is about there (or within the DOF).

     

    If you need a manual incl. DOF-Table: <http://www.submin.com/16mm/manuals/minolta/introduction.htm>

     

     

    The Minox has a focusing lens which is sharper, but only half the negative size.

     

    So it's a battle between the limited lens resulution of the Minolta vs. the small negative of the Minox. When a real fine-grained film is used the Minox is the winner. The focusing Complan lens on the Minox B is just superior to the fix-focus Rokkor.

     

    Postcard-size prints are no problem with both.

     

    First: Wet prints are the way to go.

     

    Most scanners have trouble with real b/w pictures, and the resolution of your Epson is way to low for the small frame. I sometimes scan my Minolta and Minox negatives with a film scanner (Minolta Dual Multi) at 2880dpi. It's is OK for the web, but way below the quality of a wet print.

     

    Second: the frame size of your Minolta is less then 1/4 of the size of a 35mm frame. So to get good results a film with fine grain has to be used - means a low speed film. HP5+ is -IMHO- way to grainy to use in submini. FP4+ is a bit grainy but ok, other films like PlusX, APX100 are ok also. Blufire is a better choice. Bluefire is said to be microfilm stock, like Agfa Copex or Kodak Imagelink which have very fine grain but are a bit difficult to develop. I've used some microfilm in my Minolta and you can get 4x5" prints with almost no visible grain!

     

    Christian

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