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Type: Posts; User: Robert Hart

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  1. An ancient Micro Nikkor 55mm f3.5 focuses to 8...

    An ancient Micro Nikkor 55mm f3.5 focuses to 8 and 11/32". The aperture ring overhang on the back of the lens may foul a RED Nikon F-Mount as it also does with some modern Nikons which do not have...
  2. I have noticed this going right back to when I...

    I have noticed this going right back to when I was using a two-channel original MixPre into a SI2K camera-recorder and later, Blackmagic cameras. I wonder if what you get as tone is at traditional...
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    I am not so sure I would have confidence in...

    I am not so sure I would have confidence in hot-swapping smart lenses with a self-owned camera. Professional level cameras and lens systems may have protections built in. They may also be more likely...
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    Here is a bit of vision from the day with the...

    Here is a bit of vision from the day with the repaired lens. The follows could have been better. I had crook eyes from ryegrass allergy and had taken mediciation which messes with one's reaction...
  5. Dean Butler. I think there was a short period...

    Dean Butler. I think there was a short period before full privelidges were allowed. That said, there is a process for embedding URLs a bit like you use here on reduser which a geriatric like me found...
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    If you chance to go the "pre-loved" AKA "used and...

    If you chance to go the "pre-loved" AKA "used and abused" route with a 416, be sure to check that is Phantom powered ( P48 ). It may be T power which is a lower supplied power. Feeding a T power mic...
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    SOUND DEVICES SD 301 MIXER.

    Some years back, I bought a used SD301. It turned out to have had a splash of seawater onto the display face it some tie in its life and some had crept into to its gizzards. There developed some...
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    A small postscript to the Vinten 22 story. The...

    A small postscript to the Vinten 22 story. The tilt friction never really worked right. It certainly did not manage ground-to-air follows of aircraft in flight. The pan friction is better.

    To...
  9. Cinema Products CP Ultra T* primes on Super 16mm cameras.

    Except for the 9mm member of this lens family made by Kowa for Cinema Products, the lenses cover a Super16mm film camera frame. The 9mm will vignette the corners. There was a modification for the...
  10. It can't hurt to post in BM's own forum. ...

    It can't hurt to post in BM's own forum.

    https://forum.blackmagicdesign.com/.

    The BM cams I have had a look at inside are not modular. There are no subassemblies you can swap out. Even the...
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    After a few tormentous days, I got the lens fixed...

    After a few tormentous days, I got the lens fixed in time for an aviation event tomorrow. However any diagrams or service info on this lens will remain appreciated as I have work to do on it yet.
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    A QUESTION FOR LENS TECHNICIANS.

    When re-assembling SIGMA zooms, is there a special thin-walled tubular tool for jigging the lens groups in place inside their sleeves and the pillar inserts being inserted through the tube?

    I am...
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    A LENS IS TESTING ME

    I have a Sigma 50m-500 f4-f6.3 zoom. Over the years the image has become a bit spotty. The nature of the design is that in dusty conditions encountered when chasing aeroplanes in ground-to-air shots,...
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    FOCAL REDUCERS ( SPEEDBOOSTERS )

    Just a little hint for folk to do their own fixit if you happen to have a camera with a focal reducer fitted in the throat. My arrangement has a Caldwell (speedbooster) in the throat of a "big" URSA....
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    It may be helpful with some Lemo connectors to...

    It may be helpful with some Lemo connectors to push or hold the body of the plug inwards by the fixed part of the body if you can grasp it, or the cable itself, taking care not to loosen it inside...
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    Nikon made a lens which might be of interest, the...

    Nikon made a lens which might be of interest, the 45mm f2.8 as a pancake style. This image was harvested from an eBay posting where there are several listed.
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    The global shutter should be a godsend for folk...

    The global shutter should be a godsend for folk using long lenses for follows. With global shutter, an accidentally kicked tripod is just that. With rolling shutter, a carelessly hung toe on a tripod...
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    It may not have been commonly heard by folk but...

    It may not have been commonly heard by folk but one of his masterful pieces was his scoring for the european film "Fateless".


    https://www.youtube.com/watch?v=zNXeqQvKzgI
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    A few years back when Noah was a pup we had a...

    A few years back when Noah was a pup we had a C-Motion focus system on a SI2K camera. Nikon primes with metal focus gears were a dead loss. The motors are powerful. They have to be.

    During...
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    Daniel. I forgot to mention that you will...

    Daniel.


    I forgot to mention that you will receive an inverted image to the camera sensor. For focus and framing purposes, you would best have a separate monitor and you may need to mount that...
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    Daniel. A few people have played with the...

    Daniel.


    A few people have played with the notion, using really old-school plate camera hardware. A smaller practical choice of lenses and their speed becomes a limiting factor in using larger...
  22. David and Rakesh. Thank you for your...

    David and Rakesh.


    Thank you for your responsive comments.

    In our southern state of Victoria, there has been a cluster build at a meatworks. I undestand this has been a sever probelm in the...
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    CP2 lenses can't be bad. Wide open on a SI2K...

    CP2 lenses can't be bad. Wide open on a SI2K camera with Super16mm sensor being used as a second camera at night, they were as sharp as the proper 16mm primes on the main camera and had good contrast...
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    I like my AIS Nikon set. I have no choice of...

    I like my AIS Nikon set. I have no choice of course. I have no other lenses for a 35mm format camera. I originally built up the set back in the days of groundglass-based 35mm film emulators,...
  25. David and Richard. Thank you for your...

    David and Richard.


    Thank you for your informative and courteous replies which have cleared a few things up for me.


    Again stay as safe and as well as you can in the face of the virus. We...
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