Great Bustard

Joined on Mar 25, 2009

Great Bustard's recent activity

  • Absolutely. If the outputs are the result of different processing, however... Yes, but processing is part of it. It seems that for very poor MTFs, it's an issue. At 28mm, the RF 28-70 / 2 has good ...
  • Re: "In every way that article backs up my statements. Not one mention in there of larger sensors having less noise."

    I'm happy to see that you either did not read, or did not understand, what...

  • Couple of things: (1) The differences are *easily* small enough to be measurement error. (2) In red, OL states the following: " Please ...
  • Do you mean the foreground is too dark with regards to your tastes or recollection of the scene?  To my eyes, if anything is wrong, here, is that the sky is too bright, but I wasn't there. Either ...
  • ...then I'd not put a lot of weight on the conclusion.  For example, if the particular A7R5 that they used had a mount that was ever so slightly out of alignment, or the sensor were ever so ...
  • Replied in Answer:
    Thing is, though, there's no reason to use the FF lens wide open if you're looking for the DOF you'd get at f/8. That said, here's Canon's standard zoom for RF: Doesn't look too shabby. Here's ...
  • But here's the thing -- no one says you would/should! Equivalence says *nothing* to that effect! Ditto what I said above. Actually, people argue against it all the time. And even amongst those that ...
  • Sometimes it does, but for the most part, they seem to accept the facts as the facts. Well, part of "the rest of this" that you dismiss as "technicality and not functionally useful to know" is ...
  • It's interesting that actual photos under controlled conditions carry no weight with you. Google the author of the following paper:

    https://www.photonstophotos.net/Emil%20Martinec/noise.html

    and...

  • Replied in Answer:
    Yes, and a 17mm lens is a 17mm lens.  However, the *effect* of the f-number at f/4 on mFT is the same *effect* as the f-number at f/8 on FF, just as the effect of the focal length at 17mm on mFT ...
  • So close, yet so far. Same scene, same exposure time, and same aperture diameter result in the same total amount of light projected on the sensor, thus the same noise . Pixel size is irrelevant...

  • Replied in Answer:
    But, aside from noise and blown highlights, why do you care about exposure? Exposure cannot be seen in a photo. It's only relevant inasmuch as it pertains to noise and blown highlights. So, ...
  • Replied in Answer:
    So you're saying that if 17mm f/1.8 1/200 ISO 400 represents the "ideal" settings for a particular photo with mFT that I can't use f/3.6 1/200 ISO 1600 on FF? Why not? Huh? I'm asking why "using an ...
  • ...for two photos of a given scene, one at f/2.8 1/200 ISO 400 and the other at f/5.6 1/200 ISO 1600, have the same exposure?  Because that doesn't quite fit the definition of [photographic] exposure .
  • Replied in Not quite so
    It's just that the confusion is not coming from who you think it is. Glad you asked! For the same perspective, framing, and exposure time, the DOF is half as much for FF and the total amount of ...
  • Replied in Answer:
    In fact, I often say that the same DOF and exposure time results in the same total amount of light on the sensor, and thus the same noise.  I even said it in this thread. Sure.  But I wasn't ...
  • Replied in Answer:
    Not sure what you're trying to say.  Are you saying that the f-number and total light aren't relevant with regards to noise?  Or are you saying noise, itself, isn't relevant? Well, if noise were ...
  • Replied in Answer:
    I'm saying it because using an f/1.8 lens on mFT doesn't "let" you use faster shutter speeds than an f/3.6 lens on FF.
  • Replied in Answer:
    I can use whatever shutter speed I want regardless of the aperture.  So, the aperture size doesn't "let" me use a faster or slower shutter speed.  It affects the noisiness of the photo for the ...
  • Replied in Answer:
    Shutter speed is independent from DOF.  I can shoot f/8 1/100 just as easily as I can shoot f/8 1/800.  The difference is noise and motion blur. This is incorrect.  If you wish me to explain, ...
Activity older than 12 months is not displayed.
Great Bustard has not added any gear yet.
Total messages 28620
Threads started 348
Last post 11 hours ago
Total comments 1141
Total likes 3595
Last post 12 hours ago
Total reviews 0
Entries 94
Votes cast 1396
Last entry 4 months ago
Photos uploaded 0