nbirkett

Lives in Canada Ottawa/Ontario, Canada
Joined on Aug 24, 2008

nbirkett's recent activity

  • Sorry, but that is backwards.  A 24-70mm used on a Dx body will give a FoV equivalent to that of a 36-105mm lens used on an FX camera.  A similarly incorrect comment was made by the OP.  His/her ...
  • I did a course last year which included a session about photographing art work.  Most of the suggestions are of no use here (e.g. using multiple light sources flashing through plans of polarized ...
  • As I am sure that you know, Nikon in now selling four versions of the 70-300mm lens. Two of them don't have VR while two do have VR. The latest DX version of the 70-300mm with VR (AF-P DX Nikkor ...
  • Replied in Super zoom?
    If you don't mind giving up a bit of tele range, the Nikon 18-140mm is good.
  • What budget range would you be looking at?  F/2.8 lenses suitable for sports tend to be expensive.  Could you get away with upping the ISO and using a slower lens? Another suggestion I saw on a ...
  • I've not heard of an LR catalog getting corrupted.  I guess it could happen.  But, why not use the catalog back-up process in LR?  And, a Time machine or similar disc back-up. I'm not saying 'don't ...
  • Parallels is needed for my work: statistical analysis (SAS) and graphing software.  But, I need easy integration with Mac software (Powerpoint, Word, etc.)  Plus, I also need to be able to access ...
  • I used Endnote for work activities and just got a note telling me to NOT upgrade to Sierra because of Sierra has broken parts of that programme.
  • The filter thread sizes are different (62mm on the F017 and 58mm on the F004).  The F017 also slightly heavier.  Are these changes just cosmetic or a sign of some larger changes internally?  I ...
  • The Tamron US site has a long web page which discusses the new features of the F017 90mm. The Tamron site lens lists include both the F004 and F017 but not the first version ...
  • (1) I also noticed a high negative exposure compensation on the 500mm shot (-1.67EV).  Given the image, not sure why that would be needed.
  • Wonderful photos.  I'd be happy to get anywhere close to any of those. I just wanted to clarify: the Tamron 150-600mm photos you posted were taken with version 1 of this lens?  Rather than with the ...
  • There is a review of the new Tamron, being discussed in this thread: https://www.dpreview.com/forums/thread/4056583
  • Exactly. And, so what? They would certainly consider it a very good and cheaper option but the phrase 'budget lens' carries a meaning and they would not call it by that label. You are making this ...
  • No - both of the lens I mentioned are a meant to be used on the same camera and, as such, are alternatives that shoppers could consider to fill a telephoto need. I think to most people a 'budget' ...
  • If you bought a new 70-200mm f/4 for $1,000, then you got a really good deal.  For everyone else, a new one is around $1,400 US. Clearly there is no definition of what a budget lens is.  But, since ...
  • For me, the 'free' upgrade isn't free.  I run software (e.g. Parallels) which requires a paid upgrade every time I get a new OS ($50/machine).  All of the IOS features are annoying and often ...
  • What does Sierra offer that I would make me want to upgrade?  I don't need Siri.  Apple Pay and watch aren't useful.  I have more than enough storage on my desktop (Imuch more than I have on ...
  • Current price for the 70-200mm f/4 is nearly $1,400US.  That hardly counts as a 'budget' lens. The 70-300mm may have worse performance.  But, it is a 'budget' lens ($500US), nearly twp-thirds the ...
  • You need to take two photographs within a few seconds of each other using the two lenses.  Comparing one taken this year with one lens to one taken last year with the other lens isn't a fair ...
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