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Forum: Film Processing, Scanning, and Darkroom 2 Days Ago  
Requesting advice / insight from users of Ilford Rapid Fixer
Posted By wkraus
Replies: 35
Views: 1,481
There is some variation between films but not a lot. If I’m not mistaken low ISO films tend to clear faster while high ISO films take longer. I think I read that with extremely thin-layer and high resolution films such as, for instance, Adox CMS 20 II extended fixing can dissolve some of the finest silver grains but usually this is not too critical. The data sheets for all Ilford Delta films say: “When fixing … however, slightly longer times than used with conventional film are recommended for best results.” @Digitalis mentioned the same for Kodak T-grain films.


I would say that there is no need to check the fixer with every single roll of film you process. You can start by using the test method to determine basic fixing times for the film stocks you regularly use. Twice clearing time is the minimum needed and should not be exceeded by a lot.

The data sheet for Ilford Rapid Fixer (interesting reading BTW) gives a number of 24 rolls in 135 format per litre (1+4). (The surface area of 120 format is approximately the same as of 135.) After, say, half the nominal capacity you can test if the time should be extended, and then after each couple of rolls again. That way you are always on the safe side.
Forum: Pentax Film SLR Discussion 2 Days Ago  
Post your B&W Film shots
Posted By wkraus
Replies: 10,970
Views: 1,277,408
High Atlas, Morocco, 1985. Pentax Super A, smc Pentax-M 1:2.8 28mm, Ilford Pan F film/Promicrol 1+3 developer.

This was said to be the oldest remaining building in Imilchil, originally built to house a number of related families in separate apartments.


85213_30 High Atlas, Morocco, 1985 by Wolfgang Kraus, on Flickr
Forum: Film Processing, Scanning, and Darkroom 3 Days Ago  
First roll developed - mistakes made and lessons learned
Posted By wkraus
Replies: 48
Views: 1,167
I never had any issues and usually the tape does not touch the grooves.
Forum: Film Processing, Scanning, and Darkroom 3 Days Ago  
Requesting advice / insight from users of Ilford Rapid Fixer
Posted By wkraus
Replies: 35
Views: 1,481
… unless you are developing 120 film!
BTW, Tetenal still markets the “Fixing bath tester” strips that I used decades ago. But that’s probably overkill if economic efficiency is not a major concern.
Forum: Film Processing, Scanning, and Darkroom 3 Days Ago  
First roll developed - mistakes made and lessons learned
Posted By wkraus
Replies: 48
Views: 1,167
Just a quick comment: I just tear the adhesive tape off at the end of the film. The residue doesn’t do any harm and is better cut off when the film is dry.

PS: the photos look absolutely flawless!
Forum: Vintage Cameras and Equipment 3 Days Ago  
Post your vintage photos
Posted By wkraus
Replies: 10
Views: 451
Lower Austria, December 2018. Voigtländer Bessa I (6x9) with Color-Skopar 105mm at f/9.5, orange filter, Fomapan 100 film/ID-11 1+3 developer (13 min., EI 50).



18004_06 Near Neulengbach, Lower Austria, December 2018 by Wolfgang Kraus, on Flickr
Forum: Vintage Cameras and Equipment 3 Days Ago  
Some vintage camera close-up p0rn
Posted By wkraus
Replies: 12
Views: 321
Some details from a Voigtländer Bergheil 6.5x9 with a rim-set Compur shutter and Heliar 1:4.5 f=12cm lens from ca. 1932. Photos taken with K-1 and VS Technology VS-L12056-05/V 120mm F5.6 0.5x lens.







Forum: Mini-Challenges, Games, and Photo Stories 3 Days Ago  
Panorama-orama - Post your Panos
Posted By wkraus
Replies: 2,693
Views: 267,514
Photoshop doesn’t offer any sophisticated stitching controls, as much as I like it otherwise.
Forum: Mini-Challenges, Games, and Photo Stories 4 Days Ago  
Panorama-orama - Post your Panos
Posted By wkraus
Replies: 2,693
Views: 267,514
I don’t think so. I never tried LR stitching but I assume it does not give you a lot of control. A dedicated stitching software such as Hugin would handle things better I suppose.
Forum: Pentax Film SLR Discussion 11-24-2021, 06:04 AM  
Post your B&W Film shots
Posted By wkraus
Replies: 10,970
Views: 1,277,408
Looks good in every respect! I developed my own stuff for many years but stopped in the 1990 due to lack of time. In 2018, after a 25 years break, I started again developing my B&W negs when my son asked me to teach him how to do it. After about 30 rolls of film in my “second life”, it still gives me a thrill opening the tank to see how the film turned out.
Forum: Pentax News and Rumors 11-24-2021, 05:53 AM  
Monster Adapter Magic Ring Pentax K Lens to Sony E-Mount Camera Adapter
Posted By wkraus
Replies: 97
Views: 4,127
Then I should have said, you sold the wrong lenses… :lol: But I sympathise with your decision to keep the right ones!
Forum: Pentax News and Rumors 11-23-2021, 02:33 PM  
Monster Adapter Magic Ring Pentax K Lens to Sony E-Mount Camera Adapter
Posted By wkraus
Replies: 97
Views: 4,127

You bought the wrong lenses. If you compare sold items on ebay, 85mm f/1.8 pre-AF lenses from Pentax tend to fetch twice as much as their Nikon counterparts.
Forum: Pentax Film SLR Discussion 11-22-2021, 11:07 AM  
Post your B&W Film shots
Posted By wkraus
Replies: 10,970
Views: 1,277,408
High Atlas, Morocco, 1985. Pentax Super A, smc Pentax-M 1:1.4 50mm, Ilford HP5 film/Promicrol 1+3 developer.


85215_12 High Atlas, Morocco, 1985 by Wolfgang Kraus, on Flickr

Before someone asks: the black patch on the lady’s nose is a kind of wood tar produced by dry destillation and used for a therapeutic purpose. And the object on the wall to the right is a wooden plough.
Forum: Pentax News and Rumors 11-22-2021, 10:09 AM  
Monster Adapter Magic Ring Pentax K Lens to Sony E-Mount Camera Adapter
Posted By wkraus
Replies: 97
Views: 4,127
Lucky guy – you have a Pentax camera (or several) but not everybody does! :lol:
Forum: Vintage Cameras and Equipment 11-21-2021, 03:39 PM  
Some vintage camera close-up p0rn
Posted By wkraus
Replies: 12
Views: 321
Embossed Asahi Optical Co. logo on a leather lens hood case (Takumar or Auto-Takumar era, ca. 1957–60). Again taken with K-1 and VS Technology VS-L12056-05/V 120mm F5.6 0.5x lens.



2107176690 Embossed Asahi Optical Co. logo on a leather lens hood case by WK Tests, on Flickr
Forum: Pentax News and Rumors 11-20-2021, 03:55 PM  
Announcement of the PENTAX 100 Celebration Instagram Photo Contest
Posted By wkraus
Replies: 60
Views: 7,802
The Re-animator riding.
Forum: Lens Clubs 11-18-2021, 11:32 AM  
Takumar club
Posted By wkraus
Replies: 18,102
Views: 3,560,853
Beautiful!
Forum: Vintage Cameras and Equipment 11-16-2021, 12:57 AM  
Post your vintage photos
Posted By wkraus
Replies: 10
Views: 451
Salzburg Alps, Austria, September 2019. Voigtländer Bessa I (6x9), Color-Skopar 1:3.5/105 at f/11, 1/50, red filter, Rollei Superpan 200 film/ID-11 1+1 developer


19005_01 Lungau region, Salzburg Alps, Austria, September 2019 by Wolfgang Kraus, on Flickr
Forum: Vintage Cameras and Equipment 11-15-2021, 12:02 PM  
Post your vintage photos
Posted By wkraus
Replies: 10
Views: 451
Styrian Alps, Austria, September 2019. Voigtländer Bessa I (6x9), Color-Skopar 1:3.5/105 at f/8, 1/100, Rollei Superpan 200 film/ID-11 1+1 developer.



19005_04 Styrian Alps, Austria, September 2019 by Wolfgang Kraus, on Flickr

I have a second version taken with an orange filter (linked on the flickr page) but I prefer the unfiltered version.
Forum: Vintage Cameras and Equipment 11-14-2021, 03:57 PM  
Sticky: About the Vintage forum
Posted By wkraus
Replies: 15
Views: 467
Thank you for the clarification!
Forum: Vintage Cameras and Equipment 11-14-2021, 11:54 AM  
Sticky: About the Vintage forum
Posted By wkraus
Replies: 15
Views: 467
If you are referring to my question, thank you! But I was asking about digital images taken with vintage lenses, not of vintage lenses. Something like this, for instance:
Post your K-1 pics with vintage glasses - Page 19 - PentaxForums.com
Forum: Vintage Cameras and Equipment 11-14-2021, 10:24 AM  
Some vintage camera close-up p0rn
Posted By wkraus
Replies: 12
Views: 321
Details from a Contessa Nettel Adoro 6.5x9 with a dial-set Compur shutter and a Carl Zeiss Jena Tessar 1:4.5 f=12cm lens from ca. 1922. Photos taken with K-1 and VS Technology VS-L12056-05/V 120mm F5.6 0.5x lens.


2107176683 Detail from Contessa Nettel Adoro 6.5x9, ca. 1922 by WK Tests, on Flickr


2107176684 Detail from Contessa Nettel Adoro 6.5x9, ca. 1922 by WK Tests, on Flickr
Forum: Vintage Cameras and Equipment 11-14-2021, 03:48 AM  
Post your vintage photos
Posted By wkraus
Replies: 10
Views: 451
Early snow, November 2018.


Voigtländer Bessa I (6x9) with Color-Skopar 105mm at f/4.7, Fomapan 100 film/ID-11 1+3 developer (13 min., EI 50). Negative copied using Pentax K-1 with VST VS-L12056-05/V 120mm f/5.6 0.5x lens. This was frame no. 4 from the first roll of film out of my Bessa I, which was also my first self-developed film in almost 25 years.


18003_04 Early snow, November 2018 by Wolfgang Kraus, on Flickr
Forum: Vintage Cameras and Equipment 11-14-2021, 03:36 AM  
Some vintage camera close-up p0rn
Posted By wkraus
Replies: 12
Views: 321
With a sensor with 205 pixels per mm, the K-1 (or K-1 II which we are also using) offers a theoretical resolution of about 100 line pairs per mm. Without Pixelshift, this is reduced by the interpolation taking place during demosaicing. With Pixelshift on comes close to the theoretical resolution. When copying 24x36 mm film, this translates to a resolution of about 5000 ppi. This is less than the 6300 ppi the X1 scanner offers, but in practical comparison the X1 files have hardly more detail if any, but have a considerable amount of noise in dark areas and other disadvantages.

The 100 line pairs per mm are unable to reproduce the finest details of high resolution film but are sufficient for most practical purposes. What is equally relevant is that apart from sheer resolution this is an frequency area where much of the signal related to film grain is located so the amount of aliasing at the resolution limit makes a lot of difference.

With 6x6 film the K-1 (about 2200 ppi) falls behind the X1 (3200 ppi) except when stitching several shots of one frame.

Let’s agree that this is not totally OT because it matters when digitising film out of our vintage cameras. :cool:
Forum: Vintage Cameras and Equipment 11-13-2021, 04:45 PM  
Some vintage camera close-up p0rn
Posted By wkraus
Replies: 12
Views: 321
Thank you! I wouldn’t have gone that far just for my individual needs but it saves us a lot of work in the project. All in all, it is also much cheaper than the X1 was.



I suppose you mean the Patent Etui? No, because I don’t have a film holder and it is a rather basic model. But I have and use a Certosport 6.5x9 with a Xenar lens and a Voigtländer Bergheil 6.5x9 with a Heliar lens. I will post some photos soon.
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