mike703

Lives in United Kingdom Yorkshire, United Kingdom
Joined on May 18, 2007

mike703's recent activity

  • would that be you or the camera ;-) Best wishes
  • With ultrawide lenses AF can be difficult sometimes because there is so much stuff in the AF zone and it all tends to be small. I used to have the same problem with a Pentax 16-45 at 16mm - ...
  • Replied in Confused...
    Gotcha.  And I read your comment to Media Archivist (below) about how you are approaching this form the perspective of bricklaying and construction... whereas I am a laboratory-based scientist, so ...
  • Replied in Confused...
    ... which is exactly what MediaArchivist (and I) were saying. I'm sure you know what you are talking about inside your own head, but you don't express it very clearly.
  • Replied in Confused...
    YES, Media Archivist is correct. The golden ratio is a ratio of 1 to 1/2(√5 + 1)). It pops up in all sorts of unexpected places but indisputably has the square root of 5 in it. Go on make some ...
  • Replied in Silly Doctors.
    You could always join the 'off topic' forum...
  • Sure.  But then the discussion becomes not 'what happens to lens performance' but 'what happens to the combination of lens + sensor performance' ... which may be a more meaningful question.  There ...
  • Yes, this can be significant.  I have a Tamron 28-75 f/2.8 which was originally a so-so full frame lens which performs well in the centre of the frame but poorly at edges / corners.  On a crop ...
  • ISO 6400 on a Pentax K-01 boats on the river Ganges in Varanasi Best wishes
  • You might get a Sony RX100 MkII for that price: the 1-inch sensor is very good.  To get an EVF as well requires a later model (the MkIII) which is likely beyond your price range unless you want to ...
  • Hi, when you talk about 'bokeh' I think you mean 'extent of out of focus blur'. You are clearly a fan of narrow depth of field, hence your interest in FF cameras and wide-aperture primes. 'Bokeh' ...
  • That does look a bit odd. You might expect some vignetting when the lens is wide open, with gradual darkening towards the corners, but this does not look like that (apart from anything else it is ...
  • Increase the amount of light hitting the sensor: either by using a flash, or a wider lens aperture, or a tripod which allows you to use a longer shutter speed in low light. Any of these will ...
  • Sorry, no... as was pointed out in the first reply, the f-number of a lens is a property of the lens alone and does not change with film or sensor format.  If a lens with a focal length of 50mm ...
  • ... and I bought a DSLR (or approximately equivalent) cams in 2007, 2010, 2013, 2016.  So 3y appears to be my cycle, but my current Pentax KsiiS outperforms me and will do for a while. Best wishes
  • Then why would you use them at all? Throw them in the trash and get usable lenses. If you have a decent camera body and are critical about IQ it's not that hard to get a decent lens at an ...
  • Assuming that you are using a decent lens capable of good sharp results, if you get good results sometimes but not others it is porbably slight mis-focus.  Bear in mind that the actual size of an ...
  • It doesn't. sRGB is a common 'default' and supermarket print labs might use this because it's easy and relaible and will suit most people most of the time.  But printing from Adobe RGB or ProPhoto ...
  • Dutch, that is a rather lovely portrait. Best wishes
  • Answer the question. The OP asked a simple question about possible copyright infringement. You said 'All sounds sus to me.' Then you said 'I don't recon that at all. total set up if you ask me. you ...
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Total messages 6488
Threads started 183
Last post 2 weeks ago
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Last post Apr 30, 2015
Total reviews 0
Entries 6
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Last entry Feb 7, 2010
Photos uploaded 38
Last upload Nov 4, 2012