jwilliams

Lives in United States United States
Works as a Engineer
Joined on Dec 10, 2000

jwilliams' recent activity

  • Replied in I'd bet ...
    The problem with that is we'd both have to risk our lives traveling to a common location to do a fair test :) Maybe a post pandemic (whenever that is) comparison would be safer. I'll defer to you ...
  • Your problems really are more general macro problems than your specific equipment. There is an excellent book on macro photography, 'John Shaw's Closeups In Nature', that I highly recommend. ...
  • Replied in Often ...
    Often people confuse the frailty of something with the users inability to use it properly.
  • Replied in Just ...
    Just use common sense and realize it is not industrial strength so to speak.  Taking it on/off when storing the lens is more likely to cause a problem so I would leave it attached all the time.  I ...
  • Replied in I'd bet ...
    Not making that assumption at all.  I've got plenty of old EF lenses I've used on digital.  I was referring to that specific lens that, admittedly I've never owned, but also I've never seen a ...
  • Replied in I'd bet ...
    I'd bet the new 24-105 will outperform the old 24-85.  While that lens has always interested me from a standpoint of having a decent FL range, size and aperture, whenever I've read reviews I ...
  • Looking forward not backwards is the key here.  Obviously the RP is a first effort at a cheap FF camera using old sensor tech.  Just looking at the sensor in the M6 II one can tell Canon has ...
  • It is very easy to make adjustments with the R, just a bit different than most cameras.  There is a button labeled 'm-Fn' that allows you to set 5 different settings of your choice.  When you ...
  • Replied in Why ...
    Why, if referring to f5.6 on APSC? It makes no difference if the light is coming from the flash, the sun or whatever. You can just raise the ISO because you have a larger more light sensitive sensor. ...
  • Replied in Easy ...
    Easy. RP. I had a 6D for many years. Good camera in its day, but its day has come and gone. I don't have the RP, but got the R instead and even if it had worse IQ than the 6D I'd never go back. ...
  • Good point. Might just be bad at closer focus distances. Fingers crossed :) The slow aperture does not bother me in the least. It is the price to be paid for getting this FL range in a lens of that ...
  • Having both the EOS R and m43 gear I'll throw my $.02 in. Of course the IQ of the R is better. High ISO is much better. I can shoot the R confidently at ISOs I'd never even contemplate with my m43 ...
  • What most people get wrong is that diffraction is only one property affecting the quality of the photos a lens produces.  Generally every other photographic property improves as you stop the lens ...
  • A lot of people switched over to Sony bodies while keeping their EF lenses which they used via adapters. This camera will have many of them switching back.

  • FWIW, here is my $.02. A few years back Canon dedicated itself to its dual pixel technology. I think that provides its own set of challenges in other areas due to each pixel really being 2 pixels...

  • Would have been nice to see something between 24 and 55 mm. Quite a large jump from 24 to 55mm. At 55 it looks like you can get decent results at f8. Would like to have seen it at 28 or 35 mm. Some ...
  • I've only used it a little on an R and not for macro, but haven't seen any problems.  AF seems fine for non- macro work.  Haven't used for nay closeup stuff so far.  If I have gripe it is that the ...
  • Replied in I think ...
    I think that the GX 5 II lens while not that far off equivalent aperture wise probably contains far more optical tradeoffs than the RF 24-105.  While you are right on the equivalent apertures, ...
  • Replied in Keep in mind ...
    Keep in mind that diffraction (or lack of) is not the only thing determining the quality of a photo. First, most assumptions about where diffraction sets in are rather simplistic and I have my ...
  • Lucky you, the 10D was a real improvement from what I remember.  I upgraded when the 20D came out.  That camera was with me for a very long time actually. I was only speaking from what I remember ...
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Total messages 5068
Threads started 184
Last post 2 weeks ago
Total comments 46
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Last post 1 month ago
Total reviews 2
Last review Jan 8, 2018
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Photos uploaded 4
Last upload Oct 21, 2010