James O'Neill

Lives in United Kingdom United Kingdom
Joined on Oct 16, 2003

James O'Neill's recent activity

  • I haven't used my ME-Super or MG since getting the K1; but if you compare with a manual focus camera with a simple metering system, where almost all the light which comes in through the lens can ...
  • Well, three reasons, 1. SR is a big advantage to anyone shooting hand held unless they only shoot in bright sunshine. 2. They don't want to re-introduce a manual aperture coupling for aperture ...
  • I'm open minded. The K1 starts with a brighter image than an APS-C camera an K7/K5/K3 mk i or mk ii .  The K3-iii prism gives  a brighter image than those. Would I like an even brighter image on ...
  • From what I can make out (1) They wanted to have a get-together on "Asahi anniversary day" but didn't have anything to announce
  • Replied in Pentax events.
    Having read that it looks the next FF is far enough away that if buy the new limited lens my finances will have recovered when the camera arrives.
  • I was thinking about this after reading that. When we use simple "thin lens" formulas we assume the lens is has no width - focused on infinity - the distance from lens to image is "f". So we get an ...
  • EXACTLY !
  • Particularly like the leaves. It's an older lens and it that means it can't do some things new lenses can. But if the way it renders and the kind of image you're trying to make work together - as ...
  • There are quite a few of use shooting with K5s and K3 mk I, and even my K1 is 5 years old. Any camera you buy today, even if the company decided to get out the camera business tomorrow is good for ...
  • It took me a long time before I did it for my lenses. There's a noticeable improvement. And tbh, slapping a lens on a body and not checking the AF fine tuning renders any test results invalid.
  • Replied in WOAH. STOP.
    Possibly I misunderstood what you were trying to say OK. Some people seem to think that D.o.F and "in focus" are on or off.  So you understand that things become progressively less sharp and there ...
  • Replied in PIFs
    Nice work. Pelicans were the heraldic motif of my school, and when the finances aren't looking great I'm prone to use a line from Blackadder "I feel like a Pelican" "Why's that ?" "Because ...
  • Replied in WOAH. STOP.
    Depth of field is not "in focus". It is out of focus, but not noticeably out of focus. You will often see it quoted that hyperfocal distance is given by F^2 / ca Where a is aperture, and f^2 is ...
  • 1.  Your old camera, which you like, and didn't seem to be limiting can be replaced like-for-like quite cheaply. Funds you might have for a new camera - which might be superior on paper, but be ...
  • Replied in Why not?
    Perhaps "the only way we'll do anything for Linux is over Steve Ballmer's dead body".  When I worked for Microsoft I would probably have said never. Pentax isn't a company. Pentax is brand which ...
  • Replied in Why not?
    Never saw them say that. From 2003 until the announcement of the K1 they would answer questions about FF with "Not for now, but we're keeping the situation under review" No it is not. K1 is their p ...
  • Sorry I'm getting a country smell here. With these lenses, aperture doesn't affect anything in the camera What the camera is seeing is an amount of light. How it changed from X to X/2 or X/4 or X/8 ...
  • :) But the picture is really good. - and at the time Citroen were still making the C6. And it's at least 10 years old. People have real trouble believing it's something a fan made  - and a I think ...
  • Well as one might expect the DFA* 85 is super sharp and clinical and the Ltd has the amigos magic dust sprinkled on it.  I have the 85 and the other two amigos, but 31 was never a focal length I ...
  • It isn't even a rumour :-) A photography fan created his own pictures of what a Pentax L Mount camera could look like if they ever made one. It's like "What would a Digital version of the Pentax ...
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Total messages 5618
Threads started 83
Last post 4 days ago
Total comments 19
Total likes 56
Last post Oct 28, 2020
Total reviews 1
Last review Oct 10, 2004
Entries 3
Votes cast 119
Last entry 5 months ago
Photos uploaded 35
Last upload 3 months ago