PIX 2015
dpr4bb

dpr4bb

Joined on Feb 2, 2014

dpr4bb's recent activity

  • Replied in Well .. hmm ..
    Yep, I've been saying that your original assertion was wrong ;) And what I say above about the other experiment where equivalent focal lengths are used is also correct. LOL, indeed. I thought you ...
  • Replied in Well .. hmm ..
    Yep, that is what I've been saying. With equivalent focal lengths (85mm on FX, 56mm on DX, 31mm on CX), same focus distance (resulting in the same field of view) and same f-number, the larger ...
  • Replied in Well .. hmm ..
    The results from the DoF calculator clearly showed that you were wrong: http://www.dpreview.com/forums/post/56388962 That's all there is to it.
  • Replied in Well .. hmm ..
    I've done nothing wrong. If you make false assertions in a public forum, don't be surprised if someone calls you on them. So far, aside from making erroneous assertions about DoF, you have not ...
  • Replied in Well .. hmm ..
    ?!?!? You provided three scenarios (FX, DX and CX) all with the same focal length, focus distance and f-number and asserted that they all had the same DoF. I was just trying to demonstrate to you ...
  • Replied in Well .. hmm ..
    Cropping is the same thing as using a smaller sensor, i.e., the magnification factor will become larger. What is irrelevant is your reference to a "common FoV" or the "same FoV."
  • Replied in Well .. hmm ..
    "Cropping to get the same FoV" or "a common FoV" is irrelevant. DoF involves making a standardized judgement for an acceptable level of sharpness at a common output size . This means that the image ...
  • Replied in Well .. hmm ..
    There are a number of online DoF calculators, such as the one below, that you can use yourself to calculate DoF: http://www.cambridgeincolour.com/tutorials/dof-calculator.htm Let me give you a hand ...
  • I was not aware of this. Fuji really needs to provide their own external software for raw conversion that includes the in-camera JPEG engine.
  • Replied in Well .. hmm ..
    This is incorrect. Same focal length, same focusing distance, same f-number will provide less depth of field on the smaller sensor because of the larger crop factor of the smaller sensor. The size ...
  • Actually, it's the only choice if you want the genuine Fuji JPEG engine with the much-praised Fuji colors, tonality, etc. Unfortunately, Fuji does not provide external conversion software that ...
  • Agreed, but the EF-M 18-55mm lens is much better, optically, than the G7X lens, especially for the wider focal lengths. I have both cameras.
  • Weird... Then why even bother making any comparisons?!? Equivalent images are equivalent, you know? Very obvious, indeed... Especially since you failed to address my point about the light ...
  • Once again, if you limit your sensor comparison study to the subset of equivalent images that can only be taken with the smaller formats, then you are completely ignoring the main benefit of ...
  • Read what I said very carefully. I said that it "cannot possibly be good for the sales of the N1 line ." Meaning, Nikon would sell less N1 cameras and lenses.
  • That is not what I stated. You dropped the "full-frame equivalent f/2.8" part. The equivalence discussion is about the light gathering ability of the lens/sensor system. To be equivalent to a ...
  • An "RX100 killer" from Nikon cannot possibly be good for the sales of the N1 line, but without one Sony will continue eating Nikon's lunch ;) This must be a bit of a dilemma and a topic of debate ...
  • If you only compare equivalent images without mentioning the limits of where equivalence cannot be achieved by smaller formats, then that's misleading. If we only compare equivalent images, then ...
  • Indeed! And that is the disadvantage of smaller formats and the reason that a strict adherence to the rules of equivalence is not practical and even misleading. So Fredrik's comparison has ...
  • What you need to keep in mind when discussing equivalence is that it may not be possible to take the "same" (equivalent) image in the smaller formats. Equivalence is a framework that allows one to ...
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