Mannesty

Joined: 17th February 2005

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Mannesty
Thanks Mat.

Comment by Mannesty posted on Sardinian Warbler (I think) at 18/04/2012 - 07:32

Mannesty
Keep practicing. This lens is capable of much more.

My advice . . . get closer whenever possible and use a tripod or monopod.

Comment by Mannesty posted on Further Efforts.... at 18/04/2012 - 00:04

Mannesty
I have a pair of these birds visiting my garden daily so I guess they must be nesting somewhere close.

I thought at first that they might be Blackcaps, but on checking more closely its clear that they are not as the Blackcap does not have red eyes/rims and it's cap does not extend below the eye.

The nearest I can find in my bird book is Sardinian Warbler (sylvia melanocephala). If any of you bird enthusiasts can positively ID it, I'd be grateful.

Comment Image

K21_3255.jpg by Peter E Smith (AKA Mannesty), on Flickr

K20D, Sigma 150-500mm DG OS HSM at 500mm, 1/60th, f8, ISO 100, developed in Lightroom 4.

Comment by Mannesty posted on Sardinian Warbler (I think) at 17/04/2012 - 23:56

Mannesty
Nice idea but I think I'd prefer more depth of field. Well done.

Comment by Mannesty posted on Snail macro video at 17/04/2012 - 23:24

Mannesty
It is a heavy lens but it balances very well on a monopod.

Comment by Mannesty posted on The Sigma 150-500mm F5.6-6.3 APO DG OS HSM at 17/04/2012 - 23:00

Mannesty
It's a DG lens, so it's full frame. Sigma's DC lenses are for the smaller image circle of modern DSLR's.

To check, I've just attached mine to my MZ-6 and can see no signs of vignetting in the viewfinder.

This lens is HSM only so will be manual focus on most, if not all, legacy Pentax FF cameras.

It also lacks an aperture ring so you'll need a Pentax body that will allow setting of the aperture from the body.

Sigma's explanation of their acronyms can be found here.

Comment by Mannesty posted on The Sigma 150-500mm F5.6-6.3 APO DG OS HSM at 17/04/2012 - 09:25

Mannesty
Blythman wrote:
If you are considering full frame, then this would need serious investment as your DA* lenses would heavily vignette.
Are you sure? I'm not. Some DA lenses may vignette too much to produce usable images, but from what I have read, most DA/DA* lenses vignette only slightly, and some not at all.

I think perhaps aperture control is of slightly more importance in that you will not be able to use lenses which have no aperture ring, other than at one extreme of its aperture range, on any camera that cannot control the aperture from the body, EG: MZ-S can not set the aperture from the body.

Comment by Mannesty posted on Updating from K 20 at 16/04/2012 - 14:52

Mannesty
I think the develop module has enough improvements to justify the upgrade.

As Lightroom is my primary image processing tool, I upgrade anyway, just to keep up to date.

Comment by Mannesty posted on Lightroom upgrade at 13/04/2012 - 11:08

Mannesty
I've just downloaded your file and opened it in ACR via PS-CS5.

I can see no banding at all.

I've played around with exposure, brightness, contrast etc. Nada.

By 'banding', do you mean the sky colour changing from white'ish at left, to blue at right?

Comment by Mannesty posted on Banding at 13/04/2012 - 10:54

Mannesty
PM sent.

Comment by Mannesty posted on FS: Pentax A series 28mm f2.8 at 12/04/2012 - 17:28

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