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JohnBarlow

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Posts posted by JohnBarlow

  1. John what are the options for big rear elements. The iscorama 54 is out of my budget. I have the isco ultra star but the rear element isn't that big either.

    It depends on where you want to take your cinematography. For example if you have a Malik type shot in mind of a pretty girl on horseback in a meadow reaching up to grab an apple from a tree in magic hour with all the butterflies around and such (can you see this shot in your minds eye?) then you might think F5@400mm

     

    To pull this off you will need one of these....

     

    Rectimascop 80/2x

     

    IMG_4611.JPG

     

    On the other hand for a Wedding reception where you want to use a 2.8/70-200 Canon L on a 5D , you can use the WA Cinelux which has a 63mm rear optic

     

    8360434969_9e747f7a0b_b.jpg

     

     

    This was shot with the above using 2/90mm

     

    8360440387_576d7f05c4_b.jpg

     

     

    Again the WA Cinelux will give the full height of the couple in a bokeh background at F3.2/200mm

  2. Is the Prominar or the Centavision that much worse than the B&H?

    They should be fine too.

     

    I think you have to be patient if you're looking for a bargain to avoid the want it now prices.

     

    Always check for tool marks on the slots of the front retaining ring - this is a sure sign that an inexperienced person has been messing with the optic ;)

  3. Depends how much light you've got!

    With audio the answer is simple 16bit is better than 12 bit because the signal is always 1volt peak to peak

     

    The situation with video is not that straight forward especially when slog2 is factored in.

     

    I still dont know the answer though

  4. have you ever put a lens is a glass of Coke !

    it's amazing after 3 hours it has eaten all the coating off the lens , after 5 hours it has removed all the paint from the casing , and after 6 hours you have a superb very clean shiny lens!!  try it..........

     Yeah, I know that old trick :)

     

    Next door neighbour uses a six litre pack to clean her driveway....

     

    Interestingly, some years back I watched a tv programme where three saucers where placed in front of cats and dogs in turn. The saucers contained milk, water and coke. Many pets were tested in choice and not one touched the coke, preferring either the milk or water.

     

    Hmmm

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