Gerry Winterbourne

Gerry Winterbourne

Lives in United Kingdom Berkshire, United Kingdom
Works as a Retired
Joined on Mar 24, 2007
About me:

K-3
K-5
K-7
Sigma 8-16/4.5-5.6
DA 35/2.8 macro ltd
FA 50/1.4
DA 70/2.4 ltd
DFA 100/2.8 WR macro
DA* 200/2.8
Tamron SP 300/5.6 tele-macro
Kenko 2x DGZ TC
13, 21, 31mm extension tubes
Q
8.5/1.9 (01)
K-to--Q mount adapter
AS540FGZ
AS360FGZ
3 tripods

Gerry Winterbourne's recent activity

  • ... but only by a small fraction of the amount you can change in raw. The thing to understand here is that the raw file contains all the data from each of the three colour channels but they aren't all
  • Reducing the risk is easy enough (see below) but nothing is fool proof. If I go from bright outdoors to dim interior and increase ISO but otherwise stay with the settings I've been using, I don't ...
  • Editing raw gas benefit for anyone who wants to get the best out of their images. Whether that desire comes from pride, pleasure or earning a fee is irrelevant. People who don't want that benefit ...
  • AF "points" are never points; they are either narrow rectangles or crosses. This link illustrates the principle of this strip of AF pixels (although PDAF functions slightly differently in detail) ...
  • It's true in principle but it depends on the qualities of the individual lenses. IF they are equally sharp in lines/mm at the centre and fall away proportionally to equal sharpness at the edges of ...
  • Yes, of course, be cause a lens is  called "fast" because it allows fast shutter speeds, and f/1.8 does that for any lens or sensor when the light is good. Precisely - "fast" is about exposure and ...
  • It depends what sorts of landscapes you want to photograph. You can use wide angles, certainly, but also telephoto and anything between. These are from the same spot a couple of minutes apart, the ...
  • Well, if the engineering issue can actually be solved - and it can't be solved using anything rigid like the hollow baton, for the simple reason that there isn't room for it, all you've really ...
  • That's because that range allows 70mm, 71mm, 72mm .... 198mm, 199mm, 200mm. In other words, it covers a wide range  of focal lengths in a single zoom lens. But that's only one range - there are ...
  • There are various ways of using long exposures, each with its own quirks. Whichever type, you can just use the exposure button with a short time delay, although a cable or IR remote-release is better ...
  • "True" macro lenses have a magnification at closest focus distance of 1:1 - that is, the image on the sensor is the same size as the subject being photographed. Your cameras have different sensor ...
  • Replied in Not quite
    Most of your post (which I've deleted) is good advice; but this is very misleading. The whole point about focal length is that it is the same whatever camera the lens is mounted on. What "crop ...
  • Insofar as "skill" means something learned your first sentence is true. But I'm not sure about the second sentence. Evolution has led to human brains that innately have a vast potential for ...
  • No one is born knowing how to take photos, so from that simple viewpoint it's all learned. But one can learn every aspect of the technicalities of photography - and here I mean both the scientific ...
  • Yes, they are the focal lengths as they would be on your camera - 35mm is always 35mm whatever camera it is on. But what you may not understand is that for a given focal length you get a different ...
  • "Bokeh" as generally used in the photographic community means the quality of the out-of-focus blur, not the amount of it. The amount of blur depends on several factors but if all other things are ...
  • Replied in Image qaulity
    At the size you've posted it's hard to judge the quality of the images in the usual sense of how well the photos show texture, colour and detail without having visible noise. You should post ...
  • ... till it's gone. Taking bokeh in its now generally accepted photographic sense of quality of OOF areas, there are plenty of lenses with unpleasant or fussy bokeh. If your lenses aren't among ...
  • Whoever invented the term "zoom with your feet" should be strung up. The whole point about zooming is that you change the size of the image but not its perspective, while as soon as you move ...
  • Pancake lenses are primes. There are opposing opinions about primes v zooms: some  prefer zooms (often strongly), some are equally happy with either, some prefer primes (sometimes strongly - I'm ...
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Total messages 8960
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Last post 28 min ago
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Last post 8 months ago
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Last review Mar 24, 2007
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