Quoting Stan Halpin <[email protected]>:
I like the look of all of the shots and am not sure I would have
wanted more DOF.
I am curious though. If you were into pixel-peeping, and if you did
a one-to-one comparison of the shot with close-up lens vs. a digital
zoom (crop) of the one without close-up lens, would you see a
difference in image quality? At screen resolutions, or even for
modest print sizes, do you really need the close-up?
In this case, no. For screen resolution the cropped image may well be
superior to that with the close up lens (I haven't tried it but it
wouldn't surprise me). The aim of the exercise was just to see
whether the close up lens would be useful. With the right subject, I
think it is.
Thanks for the comment, Stan
Cheers
Brian
++++++++++++++++++++++++++++++++++
Brian Walters
Western Sydney Australia
http://lyons-ryan.org/southernlight/
stan
On Mar 31, 2013, at 8:14 AM, Brian Walters wrote:
G'day all
Looking at Mark's post about his macro tests with the Q made me
realise that I needed to get off my backside and take some photos
with my Q.
My needs are more modest than Mark's - I'm more into close-up than
true macro - so, rummaging around in my bits and pieces drawer I
came across a Canon Close-Up Lens 450. I'm not sure where it came
from but may have been attached to an old Canonflex SLR I bought
some years ago (that's certainly the only Canon I've ever owned).
The close up lens is 58mm diameter and fortunately I had enough
step -up rings between 40.5mm and 58mm to be able to mount it on
the front of the 06 zoom (5 step-up rings in total).
Here's a very quick experiment using my favourite plant as a subject.
https://dl.dropbox.com/u/1370864/PentaxQ/pentaxQ.html
The first two photos are without the close up lens attached, just
to see how the 06 zoom preformed on its own. The third photo is
with the close up lens attached and as close as I could get to the
plant while still being able to autofocus.
Unfortunately, I was so concentrated on focusing distance that I
totally forgot about depth of field, so these are all with the lens
pretty much wide open. But, all told, I'm pretty happy with the
result and the close up lens will become part of my 'Q Kit'.
--
Cheers
Brian
++++++++++++++++++++++++++++++++++
Brian Walters
Western Sydney Australia
http://lyons-ryan.org/southernlight/
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