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  1. Thread: Lens hoods advice

    by GPS
    Replies
    53
    Views
    7,632

    Re: Lens hoods advice

    Thanks a lot, Brian.
  2. Thread: Lens hoods advice

    by GPS
    Replies
    53
    Views
    7,632

    Re: Lens hoods advice

    I'm going abroad for an assignment now and I don't think I'll have internet access there. Have a good shade for your lenses!
  3. Thread: Lens hoods advice

    by GPS
    Replies
    53
    Views
    7,632

    Re: Lens hoods advice

    Even the Sinar compendium lens shade cannot fully eliminate all the stray light. All lens shades are a compromise. A very good one, good or a bad one.
  4. Thread: Lens hoods advice

    by GPS
    Replies
    53
    Views
    7,632

    Re: Lens hoods advice

    Rick,
    the sharpness of the hood mask doesn't play any role on its optical effect (is minimal) and is not the reason why shades are made longer. The cutting function at its edge is the same.
    Right...
  5. Thread: Lens hoods advice

    by GPS
    Replies
    53
    Views
    7,632

    Re: Lens hoods advice

    Maybe won't do here. If the lens shade at half a distance had the same optical effect the manufactures would go for it like crazies - a smaller lens shade with the same effect would be only an...
  6. Thread: Lens hoods advice

    by GPS
    Replies
    53
    Views
    7,632

    Re: Lens hoods advice

    Forget about internal reflections - bellows shaped flock paper is more than enough to eliminate them, especially with longer lens shades. And - if you were tempted to make a lens shade with the...
  7. Thread: Lens hoods advice

    by GPS
    Replies
    53
    Views
    7,632

    Re: Lens hoods advice

    Here at least we agree. Indeed, any lens shade (inclusive Sinar one) is a compromise. Stray light can never be completely eliminated, even with lens shades twice the focal length (make it trice, if...
  8. Thread: Lens hoods advice

    by GPS
    Replies
    53
    Views
    7,632

    Re: Lens hoods advice

    Or the other way round - why - when a half size film format mask put at a half focal length distance does not eliminate all the extraneous light - the mask in the film format size put at the full...
  9. Thread: Lens hoods advice

    by GPS
    Replies
    53
    Views
    7,632

    Re: Lens hoods advice

    Another question, Bob. When a mask of the film format size put at the focal distance of the lens eliminates (as you affirm elsewhere) all the extraneous light why is it that a half size mask does not...
  10. Thread: Lens hoods advice

    by GPS
    Replies
    53
    Views
    7,632

    Re: Lens hoods advice

    So, theoretically, you could just insert cropping masks right at the lens rim and voilą - you don't need any longer lens shade? ;) Geometry, geometry...
  11. Thread: Lens hoods advice

    by GPS
    Replies
    53
    Views
    7,632

    Re: Lens hoods advice

    Hmm. Could it be why you miss the point?
  12. Thread: Lens hoods advice

    by GPS
    Replies
    53
    Views
    7,632

    Re: Lens hoods advice

    Really? Hmm. Bob, I'm the one standing behind the origin of the Lee lens shades...
  13. Thread: Lens hoods advice

    by GPS
    Replies
    53
    Views
    7,632

    Re: Lens hoods advice

    So let’s put the things in some light. First of all, somehow (a strange type error?) you contradict yourself, saying first that anything less than the focal length might not cut out enough light to...
  14. Thread: Which 600 mm?

    by GPS
    Replies
    73
    Views
    9,636

    Re: Which 600 mm?

    Ah, comparisons, the glorious can of worms...;)
  15. Thread: Which 600 mm?

    by GPS
    Replies
    73
    Views
    9,636

    Re: Which 600 mm?

    Finally, thanks for the words of wisdom... ;-)
  16. Thread: Fungi

    by GPS
    Replies
    27
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    7,884

    Re: Fungi

    Hello David, just to complete the caption one should add that this Oudemanciella is edible after thorough washing (as is often the case with rather slick mushrooms). Yet another way to enjoy it...:)
  17. Thread: Which 600 mm?

    by GPS
    Replies
    73
    Views
    9,636

    Re: Which 600 mm?

    I'm surprised that nobody told you that yet - don't care about what is "said" about the apparent sharpness of this lens as "compared" to another one. That kind of sharpness is as much in the eye of...
  18. Replies
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    Re: 210 Symmar versus 210 G-Claron

    You mean you'd not be relying on a Graflex camera, focused visually on the gg (right on, again), checked visually standards parallelity (good as usual), hoped for a non bulging film (no, doesn't...
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    Re: 210 Symmar versus 210 G-Claron

    Ian,
    don't get easily fooled. The reason why magazines dropped the test charts was far more practical than you'd believe... The magazines were living on advertisement. They knew it all too well. And...
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    Re: Roll films and their journey to/from New Zealand

    Grumium
    on the friendly note, I think you do well taking seriously the suggestions and the surprise of the posters here about the huge amount of film you intended to take.
    I'm a long time (25...
  21. Replies
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    Re: 210 Symmar versus 210 G-Claron

    "My experience" -that's the correct way to say it. Indeed - if you take a sharp picture with a lens, you have the right to say - it is a sharp lens because an unsharp lens cannot take sharp pictures....
  22. Replies
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    Re: Is "normal" perspective the most pleasing?

    Is a novel more pleasing than a poem? Matters of personal preference are not objectively comparable because they are just that - personal preference. "Is an apple more pleasing than a pear" is a...
  23. Replies
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    Re: Is "normal" perspective the most pleasing?

    Sure. In fact, the perspective in itself is not a content of a picture. It's just like a style. And one style in itself is hardly any more pleasing than the other, it all depends on the content. A...
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    Re: Is "normal" perspective the most pleasing?

    Ken,
    I don't know if you realise that but you yourself have now the answer to your original question at your fingertip. Just answer to yourself - am I now more pleased with the new perspective or...
  25. Replies
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    Re: 210 Symmar versus 210 G-Claron

    Guys,
    take now a more distant look at the content of this thread (Ken Lee would say the least pleasing perspective ;) ) and see the following: 3 (perhaps even 4) people think the G-Claron lens is...
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    Re: Roll films and their journey to/from New Zealand

    Just highly curious and perhaps slightly off topic but - were you using the format with this 72mm lens in Switzerland? If so where? I wonder because with this combination you must be quite close to...
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    Re: 210 Symmar versus 210 G-Claron

    I agree with you. Except for professional reasons very few photographers would need to change lenses only because the X lens has 10 lines/mm better resolution than the other one. Even more so with...
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    Re: Enlarger bellows for camera bellows?

    Yup, that's what goes together with the length. But even so, seeing the poor beast it seems it'll be satisfied with whatever face lift...
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    Re: 210 Symmar versus 210 G-Claron

    So Cor,, by now you have probably more opinions than you asked for... Chances are, that when running your test, all you will be able to see is the momentaneous capacity to focus your enlarger - more...
  30. Thread: Chamonix 45N-2

    by GPS
    Replies
    10
    Views
    7,179

    Re: Chamonix 45N-2

    BTW, try to glue to the protector an edge made of foam, resting on the gg wooden frame. It will impede the protector from sliding.
  31. Thread: Chamonix 45N-2

    by GPS
    Replies
    10
    Views
    7,179

    Re: Chamonix 45N-2

    Once I bought a gg protector from Calumet. I was forever kicking myself for the moment of its acquisition when I realized how easily I could have made it out of PVC sheet which is heat pliable,...
  32. Replies
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    2,842

    Re: Enlarger bellows for camera bellows?

    In all this possibly the biggest difference will be the respective length of the two bellows. The enlarger bellows could be shorter, it seems.
  33. Replies
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    Re: 210 Symmar versus 210 G-Claron

    And in case you're still into it try to describe your testing methods (a Graflex camera and the near fence) and its results as an objective lens test somewhere for a publication other than that on an...
  34. Replies
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    Re: 210 Symmar versus 210 G-Claron

    Since you asked again - I answer again. The "rankings" of your lenses are not based on a sufficiently correct test. They're your own experience with your lenses, not an objective result of...
  35. Replies
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    Re: 210 Symmar versus 210 G-Claron

    You see Dan, you try to deviate the post to a different point...:)
    So, on a different point I tell how I do with lenses "unusable"...:) I have lenses that I couldn't use on my view cameras be it...
  36. Replies
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    Re: 210 Symmar versus 210 G-Claron

    I answered your question. You don't have technical means to be able to test lenses resolution and contrast. That's why your lens "tests" are nothing more than amateurish ways of comparing pictures...
  37. Replies
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    Re: Enlarger bellows for camera bellows?

    The use depends on your camera (lens focal length you want it for) and the bellows material (thickness, flexibility). Sag? There is at least 100 ways how to easily deal with bellows sag.
  38. Replies
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    Re: New Lens or Lens Hood?

    Not necessarily. A paper (plastic) lens hood can be attached to the lens and detached in a matter of seconds. The advantage is that it doesn't need any additional construction attached to the camera...
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    Re: New Lens or Lens Hood?

    That said, don't necessarily imitate compendium shades with their big openings - they're far away from the best efficiency for a lens shade, for many reasons. To give you an idea - for your 180mm...
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    Re: New Lens or Lens Hood?

    The deeper (longer) the lens shade is (and consequently also larger) the more efficient it is. Additional efficiency is reached with a shade that corresponds with its sides ratio to the film format...
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