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  1. Replies
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    Hi Geoff, I guess the biggest pain with using...

    Hi Geoff,

    I guess the biggest pain with using tubes or close-up filters is that you lose the ability to focus at infinity without fiddling around with the lens. Which is fine if you're only...
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    I don't think there's any particular reason the...

    I don't think there's any particular reason the 11-16 is unsuitable for landscape photography, but if landscapes are your main thing then I bet you'll find the bigger range of the 12-24 more useful...
  3. Thread: Bird Thread

    by benp
    Replies
    2,503
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    681,424

    Sticky: I think they're Egyptian geese, Geoff. Kind of in...

    I think they're Egyptian geese, Geoff. Kind of in between a goose and a shelduck. There seem to be lots of them along the Thames
  4. A guy at Monash did some related stuff for his...

    A guy at Monash did some related stuff for his PhD: http://www.logarithmic.net/pfh/thesis

    There's also a GIMP plugin for it... haven't had a chance to try it out though
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    I've only had to clean the sensor once so far - I...

    I've only had to clean the sensor once so far - I noticed some recurring fuzzy black blobs in the sky. Checking the full frame as described above showed that there were some worse spots in the lower...
  6. Replies
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    I don't think it's on the lens or the sensor :-)...

    I don't think it's on the lens or the sensor :-)

    It's dust that is near to the front of the lens and in the path of the flash (say, floating 1-2m in front of the camera). The dust particles are...
  7. Replies
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    Yeah, it's probably just dust near to the front...

    Yeah, it's probably just dust near to the front of the lens getting nuked by the flash on high power. I don't think there's any way to avoid it with on-camera flash (but probably even just having...
  8. Replies
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    About 240 difference at Amazon. I'd be tempted...

    About 240 difference at Amazon. I'd be tempted to get the 55-200 plus the 35 f/1.8 AF-S :-)

    Since the differences are mainly build quality/handling rather than image quality, go to Jessops and...
  9. Replies
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    5,042

    I've used both a bit, and would make the...

    I've used both a bit, and would make the following points:
    The 55-200 is way better value for money if photo quality is your main concern
    But focus is much faster on the 70-300 (plus you can tweak...
  10. Replies
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    1,194

    With LCD monitors you really only have one choice...

    With LCD monitors you really only have one choice of resolution... if you set to anything other than native it necessarily looks awful. At native resolution the pixels should be square so pictures...
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    The 18-105 does have manual focus override, i.e....

    The 18-105 does have manual focus override, i.e. there is a focus ring you can turn without having to flick a switch first. According to Thom it's actually a partial override system and the camera...
  12. Thread: GRRR! Noise!!!

    by benp
    Replies
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    2,137

    I don't think noise is a big problem with that...

    I don't think noise is a big problem with that picture. But anyway, if you're using Linux, Neat Image works perfectly in recent versions of Wine and seems to do a pretty decent job of noise removal....
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    Have a look at this video:...

    Have a look at this video:
    http://regex.info/blog/2008-09-04/925

    You can see that the shutter doesn't actually expose the entire sensor for the full time (as the curtains move over it). For a...
  14. Thread: 35mm f1.8 G lens

    by benp
    Replies
    189
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    24,653

    Yeah, that's what I was saying... If you take...

    Yeah, that's what I was saying...

    If you take a portrait at 105mm, then take it again at 35 mm (from the same position), crop the 35mm image so you get the same field of view and resize both...
  15. Thread: 35mm f1.8 G lens

    by benp
    Replies
    189
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    24,653

    Hmmm... can you explain how this applies to...

    Hmmm... can you explain how this applies to digital compacts, e.g. a superzoom with a 1/2.5" sensor and a 6-72mm lens? Or a pinhole camera with no lens and a wall as the screen!

    I think you'll...
  16. The paint forms a non-metallic surface, so you do...

    The paint forms a non-metallic surface, so you do in fact get polarised reflections from cars. Also remember that with the polariser you can either eliminate reflections, or enhance them by rotating...
  17. Thread: HDR "art"

    by benp
    Replies
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    2,387

    Just capturing the extra dynamic range is no...

    Just capturing the extra dynamic range is no good: a computer screen has low dynamic range, so you can't display an HDR image on it.

    Tone mapping is the process that takes you from your HDR image...
  18. Thread: HDR "art"

    by benp
    Replies
    14
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    2,387

    Tonemapping and HDR are essentially the same...

    Tonemapping and HDR are essentially the same thing, compressing a high-dynamic-range image into a medium that has lower dynamic range e.g. computer displays or printed images.

    In HDR you start...
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    My impression is that you could classify the...

    My impression is that you could classify the improvements in image quality as "subtle", so it's not justified (for me at least) on those grounds. The build quality difference appears to be a lot...
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    Eric, the 18-105 does have full-time manual focus...

    Eric, the 18-105 does have full-time manual focus override. On the other hand, there's no distance scale, which is annoying.

    I guess the thing with resolution vs other aspects is that you can, in...
  21. Have a think about what specific lenses you want...

    Have a think about what specific lenses you want to get and that may help you decide.

    The main thing to choose is the focal length range you'll be using and how happy you are about changing...
  22. Replies
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    Try out both the cameras at a store, then buy the...

    Try out both the cameras at a store, then buy the D80 :).

    $70 is not really that much to pay for the much better viewfinder, bracketing, top LCD, autofocus with non-AF-S lenses, etc.

    But give...
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    Maybe the best approach is to stick with RAW +...

    Maybe the best approach is to stick with RAW + JPEG. That way you get the JPEGs without any effort, but you have the backup of the RAW files for those shots that need tweaking. When you download the...
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    One thing to remember is that you won't get...

    One thing to remember is that you won't get autofocus with the 50 mm f/1.8 on the D40 or D60 since they don't have an AF motor in the body. Not the end of the world but definitely something to be...
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    Gene's advice is all excellent. I found that...

    Gene's advice is all excellent. I found that using the spot autofocus (menu, AF mode, the one at the bottom) solved my problem of blurry birds and beautifully focused twigs and leaves.

    The depth...
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