Hamiltionian

Lives in United States San Francisco, CA, United States
Has a website at https://thecentercolumn.com/
Joined on Jun 16, 2015

Hamiltionian's recent activity

  • Replied in New Tripod
    Yes, its true. Aluminum does tend to make for better center columns.  There is no reason that this should be the rule, but I believe most manufacturers use the bending optimized carbon for their ...
  • There are a lot of aspects to sensor size, but in terms of theoretical signal to noise, bigger is better.  Lets assume that the read noise and dark current are negligible, which isn't too far off ...
  • Yep.  They said that its the largest chip they could fit onto a 12" wafer.
  • Just get the real one which will be better made, have warranty and technical support, and doesn't support copyright thieves.
  • The Pentax 80-160 is a pretty reasonable lens, especially since they are basically being given away on the used market.  It is definitely best when stopped down to f/8-f/11 though, and of course ...
  • Canon has produced a sensor that is 20 cm x 20cm. It has only been used in astronomical applications and I don't believe the price has been disclosed. http://www.canon.com/technology/future/cmos.html ...
  • +1 for the immutability of math and physics.  At least with regards to classical optics.  The maximum depth of field possible for a given angle of view (equivalent focal length) before diffraction ...
  • Replied in New Tripod
    The Manfrotto 190 series is pretty reasonable from a build quality perspective.  Most tripods these days are made with twist locks.  I cannot think of any that have metal flip locks. You are going ...
  • Replied in New Tripod
    In my testing I have found carbon fiber to be much better at eliminating vibrations than aluminum, both in terms of stiffness and damping characteristics. https://thecentercolumn.com/2018/06/05/car ...
  • Replied in Actually yes
    That makes sense.  Fuji changed the rebates, so it probably through B&H's automated pricing for a loop.  Adorama still has the build a bundle option for the GFX 50R, with very good prices for the ...
  • I simply mean subjects that lie within the depth of field of the lens at apertures below the diffraction limit.  In the simplest case a wall, or landscapes taken from a cliff edge, such as the ...
  • Created discussion thread Pixel Shift of GFX 100S
    Rumor has it that the GFX 100S will feature the pixel shift mode seen on recent Pentax and Sony cameras with IBIS: https://www.fujirumors.com/rumor-fujifilm-gfx-100-with-pixel-shift-multishot/ I ...
  • In my tests they perform extremely well for the price: https://thecentercolumn.com/rankings/
  • From the images we have seen of the GFX  100S, it looks like the battery compartment is a pull out tray.  Its hard to tell if that is a single battery or a compartment to hold one or more of the ...
  • I wasn't familiar with the mechanical mechanism for IBIS until now, so anything I was suggesting was born of ignorance.  But yes, clearly the the power budget would be much larger for IBIS on the ...
  • The best price to performance tripods out there are the Leofoto LS series.  Check out the LS-284C or LS-324C.  Availability is spotty though.  The Feisol tripods are also pretty good, but they ...
  • Ah that makes sense.  I will be curious just how critical the IBIS actually when the camera gets released and reviewed.  Or in other words, what shutter speed / focal length combinations benefit.  ...
  • Replied in Yep
    The maximum aperture is disappointing.  I assume it was a trade off with size, weight, and price.  The good news is that it looks roughly similar in size to the 120mm.
  • I was surprised to see that the GFX 100S didn't share the same form factor as the 50S.  Specifically the integrated vertical grip.  My guess is that the new sensor has higher power draw when used ...
  • I definitely have my eye on the 100-200mm.  Given Fuji's track record, and that zooms in that range are typically very good, it should be a superb lens for landscape photograpy.  Now I just need ...
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Last post Jul 5, 2015
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