Bosun Higgs

Joined on Jan 27, 2021

Bosun Higgs' recent activity

  • If there is one thing I have learned walking The Path of The Bokeh, it is that the appreciation of its many types is very personal. Definitely a "one man's meat" situation. For instance, I know ...
  • When I did a search there are a ton of adaptors available for this lens, handmade aluminium, 3D printed, even one texturised to match the finish on a Graflex. I was astonished to see that Kenko ...
  • I've just noticed that you mentioned the Fuji X-pro 3 as a likely body, the Lomo 55mm would be a bad match for this body as the sensor is APS-C. Many of the bokeh effects of Petzvals are most ...
  • Is it the new Lomography 55mm you are refering to? If so, that's one heck of a price. At this FL, 2 inch (51mm) f1.6 projection Petzvals can be had on Ebay for around £20 and some of these give ...
  • Here are some images taken yesterday with an 8 inch f2.9 Pentac, an aerial reconnaissance lens from World War 2. All images are FF single exposures, uncropped taken with a Sony A7rII. As you will ...
  • This is a common problem with the wartime aero version of the Pentac, the inner body of the lens that holds the elements is made of brass while the outer casing is aluminium, presumably for weight ...
  • No, none of the Pentac elements are Thoriated. In any event, the Kludgemount standoff would give my corneas good inverse square protection from a and b.
  • Created discussion thread Mystery loft find - The Other Lens
    Some folk may remember me posting about discovering two lenses buried in the junk in my loft, at first I was taken by the unnamed, mysterious, and very old brass lens which I converted, modified, ...
  • They do go quickly! I know that one of the Gaumont Kalee 197mm f1.9's that sold on Ebay last month went in under 30min, as I just missed the listing The only modern projection lenses I have tried ...
  • Err......... no. The Kalee Super Projection cost me $46 The Bernoist Berthiot Cinestar cost me $74 The Russian 35-KP cost me $39. Those figures include the postage too. That's $159 for all three , ...
  • The images above were taken with a Gaumont Kalee 83mm f2 projection lens. I chose the Kalee images as you mentioned that you were swirl-averse, and Double Gauss based lenses like this generally ...
  • Insert is pixel level. Is this the sort of bokeh rendering you are looking for?
  • The Magna-Com 65 is an accessory lens for ISCO cinema projection lenses such as their Ultra-Star Petzvals. It allows the projected image of non-standard film sizes to be adjusted to fit the cinema ...
  • The vignetting can be improved quite a bit by increasing the diameter of the rear lens holder and cutting about a cm off the front of the lens tube. Even with these further mods, I still get a ...
  • I know it's a long shot, but I was wondering if anyone on the forum has, or has access to, an Ernemann Kinostigmat projection lens? Focal length is unimportant.
  • It was Yu-Lin Chan's excellent "Lens Bubbles" website that got me into lens modding. He was a prolific and inventive modder and I particularly remember reading of his excitement at getting a lathe ...
  • I finally got the brass lens cleaned and rigged up on the A7rII for testing. Hood not shown here, but I basically used a stack of M42 extension tubes 6cm long. Before I could test it I also needed ...
  • I took the elements out of the holders for cleaning today, and at some angles the front element shows a very faint pattern that may be some edge separation. It's really hard to see, you need the ...
  • Replied in Oil Slick
    None of the lenses I have mentioned in this thread have integral shutters. In the case of the LF lenses, the only moving parts inside lenses are the iris components.
  • Funny you should say that, I was thinking Aplanat! I managed to get the element holders out. The holder of the front element is the thinnest threaded thing I've ever seen, there must be only ...
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