Algernon

Joined: 22nd May 2010

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Algernon
Good Idea! A 12-12mm Zoom will certainly
leave you with far less decisions to make!

Comment by Algernon posted on Thinking the Unthinkable??? at 22/08/2012 - 17:21

Algernon
KPS also do a good 1.35x, but don't order it if it doesn't
say MAGNIFYING because they also do the same item without
the magnifier.

Comment by Algernon posted on FS; Tenpa 1.36x magnifying eyepiece at 22/08/2012 - 17:11

Algernon
Very clever..... finding something to do in the rain!

You did an excellent job of capturing the performance

Comment by Algernon posted on Fous de Bassin (Water Fools) on Derwent Water. Part of the Lakes Alive Project 2012 at 22/08/2012 - 11:39

Algernon
These do photograph a lot better than they look
Good idea putting them against a black background.

Comment by Algernon posted on Flames at 22/08/2012 - 11:34

Algernon
No it magnifies what you see.

Comment by Algernon posted on FS; Tenpa 1.36x magnifying eyepiece at 22/08/2012 - 11:01

Algernon
RF-602's seem OK at 1/100th sync-speed... they show
a blackline at 1/180th.

Infrared is OK at 1/180th.

Comment by Algernon posted on Pentax 500 FTZ help needed at 21/08/2012 - 18:44

Algernon
You don't even need AF with a wide-angle lens.
This is quite a good tutorial on how best to
achieve sharp results.

http://blog.phaseone.com/2011/03/31/achieve-sharp-images-with-wide-angle-lenses/

-

Comment by Algernon posted on K-5 shake reduction with Sigma 10-20mm at 21/08/2012 - 18:37

Algernon
You shouldn't need SR on a wide angle. I always found the
edges on the 12-24mm better without it. The 10-20mm f4-5.6
is the one I have at present. Optically very little between
that and the Pentax.

No Nikon WA lenses have VR (SR) including the $2,000
14-24mm

http://www.nikonusa.com/Nikon-Products/Camera-Lenses/All-Lenses/index.page

Comment by Algernon posted on K-5 shake reduction with Sigma 10-20mm at 21/08/2012 - 17:46

Algernon
The whole test (and the majority of 3D tests that you see
on the internet) is absolute nonsense

The DOF at 1:1 pixel level is mm's so anything other than
a flat board is going to be comparing either two points
that are OOF or possibly 1 point in focus and the other
OOF..... also they pick objects that look nice on the
photo, but don't stretch the cameras or lenses.

This indicates the problems of focusing on just a single 2D
target:
http://www.slrgear.com/articles/focus/focus.htm

You have the same problems with the 3D target... no two
cameras will be focused on the same point and I doubt
if they do 10 test shots of each at every aperture

Non-UK banknotes and stamps are quite good for testing
purposes.

I use the Novoflex focusing rail that Imaging Resource
have on the top of their yoke. I normally take about
5 shots moving about 15mm between each and pick the
sharpest.

Comment by Algernon posted on COME ON PENTAX WHERES YOUR full-frame at 21/08/2012 - 11:57

Algernon
Aero wrote:
Hi, Rob. A pal of mine who claims to be an "international bird expert" (and shortly to appear on Autumnwatch on TV, if he's to be believed) came across this thread and was eager to help but the image is no longer available. Any chance of sticking it back on to satisfy his curiosity? I'm sure he'd give you a positive ID.

From memory, it was a great shot, by the way.

Cheers

Al
Ask your friend to do an IdentiKit picture based
on all our descriptions above

Comment by Algernon posted on What type of Hawk is this? at 21/08/2012 - 08:18

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