Bosun Higgs

Joined on Jan 27, 2021

Bosun Higgs' recent activity

  • Created discussion thread The Third Time Was the Charm...
    Recently I couldn't resist when two D.O.Industries Navitar projection lenses came up separately at very low prices, I posted about both of these here . Well, a third emerged, at another very low ...
  • Replied in Anastigmat
    I think that my perception of the age of lenses labelled "anastigmat" was perhaps heavily coloured by the many copies of old lens catalogues I collect. I always mentally picture such lenses in ...
  • Hmmm, considering the 100mm image circle of the lens, I was wondering if this lens could have been intended for the projection of larger formats than 35mm? I did a little digging and it looks like ...
  • Created discussion thread Anastigmat
    Fate seems to have caused quite a few triplet projection lenses to come my way recently, but the latest one is a more than a little different to the others. The lens is a 100mm f2.8 Rodenstock ...
  • Brilliant work! You should try some moving objects, as being dual lens simutaneous capture. you will be able to "freeze" them. Subject motion is the bane of my life with my sequential capture method. ...
  • Knowing the focal length and aperture would narrow things down an bit.
  • As it happens I just happen to have a Kowa Eiki 50mm f1.2. I would agree that it is a tad sharper. It also has none of the Colorplan's fingeing problems. It also has, as you say, much softer bokeh, ...
  • Replied in The Weather Eye
    Here are a few shots from this afternoon. I beginning to think that my Colorplan may well have a built-in weather curse. I've been trying to get some images taken with it under contrasty sunny ...
  • I can see the attraction of using the original focusing sleeve, but I think that in this case it is limiting use and I wouldn't be too keen on the lens falling off. I used a 42.5mm to M52 clamp and ...
  • Created discussion thread Leitz Lust Frenzy
    I seem to have had a bit of a Leitz bonanza in December. Despite already having quite a few Leitz projection lenses, I managed to buy an Elmaron, a Colorplan, and a Dimaron. To be fair, I was not ...
  • Replied in Why Colorplan?
    One thing I forgot to mention is that the front element is recessed deep inside the metal nose on mine. The side walls are about 17mm deep and have very good matte blackening, so this is very much ...
  • I wouldn't be too despondent! Your Colorplan is the older 5:4 version and has a completely different, much more symmetrical design. The bokeh, fringeing, and contrast are almost guaranteed to ...
  • Created discussion thread My Colorplan Arrived!
    My Colorplan arrived and was in excellent condition. It is the later version with a black nose and silver tube, and my lens was made in Germany. This version has the six element four group design. ...
  • The mount, extension tubes and helicoid were untouched during the flipping. The lens was simply released from the clamp ring. There is a little latitude in how straight the clamp mounts, but was ...
  • Replied in Why Colorplan?
    Just a quick note. My Colorplan has arrived, it is one of the later 6:4 lenses and is German made. I have seen these later lenses described as having a black plastic nose and included this in the ...
  • No, you are totally safe at 10mm, I've used dozens of lens at this projection and had zero problems The Dallmeyer rear projection was 15.5mm and the Sony register is 18mm, subtract 2mm for cover ...
  • With these lenses the elements fit into recesses machined into the metal of the lens tube. The fit is very tight. For instance, you cannot use paint to edge-blacken elements as the thickness of ...
  • For E-Mount the accepted max is 10mm, I have used a Canon P2 projection lens that had 11m protrusion on a A7rII and got away with it, but would not do this again. I actually fouled my shutter with ...
  • Well, I did decide to try a partial reassembly of the lens. It occurred to me that the rear symmetrical element might not actually be totally symmetrical and despite the care I took to avoid this, ...
  • Created discussion thread Why Colorplan?
    I have recently been buying even more Leitz projection lenses, and have been involved in a couple of threads about these lenses here recently. This got me thinking about Leitz projection glass in ...
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