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jrjacobs

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Posts posted by jrjacobs

  1. Terry -

     

    I used to have a set of White Lightning 800's, and they were inconsistent in the settings range - in other words, dialing down one stop did not give a true one stop between each setting - so alot of time was wasted adjusting and then taking readings again. Other than that, they worked fine, but it the end I replaced them as the inconsistency became annoying after awhile.

  2. With your budget ($500-$1000) you should consider the JTL Mobilight kit. For $700 you get two 300ws strobes with modeling lights and portable battery packs, light stands, and cases to pack it up it. I've done many a wedding with this kit and it is great.

     

    Another option is to pick up a set of Metz 60 CT-4 flashes and use them with lighting stands - you'll get the same power as 300ws strobes with battery power and 8 stop adjustability, but you lose the modeling lights of course. Nice thing about this route is that they double as pro-level camera flash as well.

  3. "Getting catchlights - 'specular highlights' - in a light tent is nigh impossible. So you may want to fake 'm in PP. I use PhotoLine32 for that (http://www.pl32.com/). Try it."

     

    That example you posted looks absolutely fakey. Why not use a real star filter instead? Less photoshop time and it won't look like fake cartoon stars?

  4. Greg -

     

    Definitely repairable and worth repairing. I just had a Pentax ES overhauled. It is far and away the nicest M42 body I have ever used. Aperture priority and open aperture metering - it's like an M42 version of a ME Super, but without the drain on batteries.

     

    I am in Los Angeles and I had it done at Steve's Camera Service on Sepulveda Blvd. in Culver City. Do a google and you can find them. They have a great old Pentax repairman named Bill who is very familiar with all things Pentax.

  5. It's a stupid comparison. When doing the test shots, he writes:

     

    "To eliminate as many variables as possible, I used studio light, a tripod and the Apo-Summicron 2/75 at medium apertures. The Canon had the very good 24-105 at focal length 75 and also at medium apertures."

     

    OK - so he is testing cameras for quality of sharpness and rendition, but then he uses a PRIME lens on one camera, and a ZOOM lens on the other.

     

    Doesn't seem like a way to "eliminate as many variables as possible" to me - instead it makes for an uneven playing field. Zooms are great, but good primes always outdo them when you are making rigorous tests like this.

  6. According to Canon's own website, the 16.7mp full-frame sensor on the EOS 1DS Mark II is finally the equivalent of a 35mm film frame.

     

    http://www.canon.com/technology/canon_tech/explanation/cmos.html

     

    "Second-generation large CMOS sensors have a resolution of 16.7 million effective pixels. This is a high resolution said to be equivalent to that offered by 35mm film SLR cameras."

     

    I have an 8mp Rebel XTi and I can readily see the difference in amount of detail between it and scanned 35mm Provia frames - the 35mm film has much more detail than the 8mp images. If your 6mp images look sharper and more detailed than your 35mm Provia shots, then I suggest that either you have a poor quality lens on your 35mm camera or else you have a poor scanner.

  7. The problem with using a rangefinder for landscapes is that it makes it very difficult to use the typical landscape filters such as polarizers and ND grads. With a rangefinder, you can't see what the filters are doing, or if you have them in the correct position. SLR's are better for landscapes in this regard.
  8. It could be a problem with the lens aperture. If the lens is assembled so that the aperture is not at the correct nodal point, then focus will shift slightly when you change apertures.

     

    Shoot a test roll by putting it on a tripod and focusing, then shoot several shots while changing the aperture and not the focus. This may help you troubleshoot the problem.

     

    Unfortunately, if this is the problem your only choice is to get a new lens.

  9. I recently picked up a National Geographic medium backpack (made by Bogen) for a hiking trip in the Sierras. It's a very nice bag that held my Pentax 67, 3 lenses, and accessories comfortably. I looked at a number of bags inlcuding the Lowepro Trekker and found this one to be the most comfortable and versatile. Besides having the camera compartment, it also has a laptop compartment, a storage area for your non camera stuff, and tons of pockets. It also has a five year warranty. The good padding made a huge difference on 7 mile hikes. I recommend it.

     

    http://www.bhphotovideo.com/bnh/controller/home?A=details&kw=NA5162BM&is=REG&Q=&O=productlist&sku=428388#

  10. I would think either a Hasselblad, or any quality TLR are good candidates for handholding. With the leaf shutters, these cameras (especially the twin lens) can be handheld at pretty low speeds (1/30th).

     

    I also handhold a Pentax 67 all the time, but I do not shoot below 125th/sec when handholding.

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