All Forum Comments
Comment by Lubbyman posted on Fisheye and Macro Lenses... which one?!?!? at 18/06/2022 - 21:32
And in case you're wondering, the title of the thread is not misleading, the path and road really do meet - but out of shot (head south and downwards in the first picture, the path eventually goes under the road).
Thoughts, comments etc. welcome as usual.
1. Looking south

2. Looking east

3. Looking west

Steve
Comment by Lubbyman posted on Meeting of Ways (fishy...) at 18/06/2022 - 21:25
Complete silence except for the skylarks and stonechats...
Steve
Comment by Lubbyman posted on Aren't we lucky..... at 18/06/2022 - 20:59
It's hard to go wrong when deciding whether to go for a Pentax or Sigma macro lens, they are all optically very good. I've got two Pentax (35mm and 50mm), two Sigma (70mm and 105mm) and one Irix (150mm) macro lenses and choose which to use (with a K3) according to their other attributes (e.g. focal length), not for their optical qualities. So before you take the plunge, it's worth thinking about what you will want to use it for.
In general, the shorter the focal length, the closer you have to be for a given magnification. So for bugs and other things that might run for cover when they see a lens getting close, the longer the focal length the better. 100mm is the most common for that sort of thing, partly due to ready availability and price. But there is always the Irix 150mm (new) and Sigma 180mm (used) if you want to go longer. For bugs in the wild I use the Irix, or if wanting to keep weight down, the Sigma 105mm, both often with Pentax 1.4x teleconverter for added magnification. The shorter focal lengths are used for flowers etc., particularly when indoors - available space often determines focal length (I got the Sigma 70mm specifically for my 'kitchen studio' where 50mm was too short and 105mm too long for the subject matter and the working distance possible on the kitchen work surface).
Autofocus is not an issue for macro as manual focus is necessary for the close distances used for macro (and if you really catch the macro bug, there are focus racks, bellows and other gizmos to help with precise focus). However, if you think you might want to use a macro lens for non-macro purposes - and there is no optical reason why you shouldn't - then autofocus might be useful. And if you're not frightened of being out in wet weather (for macro or other reasons), then weather sealing would also be useful. As far as I'm aware, the only weather sealed options are a WR Pentax 100mm (which has autofocus) and the Irix 150mm (manual focus only).
Fisheye is an interesting complement to macro - from small scale in precise, accurate detail to large scale with deliberate distortion! I have the Pentax 10-17mm fisheye zoom and that is more than good enough for my occasional forays into the world of fisheye. Optically, it is very good. And it has the interesting feature of going from very obviously fisheye at 10mm to much more 'normal' at 17mm, so a bit of a dual purpose lens.
Any questions, please ask. Looking forward to hearing what you decide to get - and seeing some pictures .
Steve
Comment by Lubbyman posted on Fisheye and Macro Lenses... which one?!?!? at 18/06/2022 - 16:55
Steve
Comment by Lubbyman posted on Pollinating Insects at 16/06/2022 - 13:47
Steve
Comment by Lubbyman posted on Pollinating Insects at 15/06/2022 - 18:04
The grass is ris
I wonder where the birdies is?
The little birds is on the wing
Ain't that absurd,
The little wing is on the bird!"
I always thought that this little rhyme expressed an obvious truth. How wrong could I be...
Thanks for putting me right!
Steve
Comment by Lubbyman posted on So work on the wing had to stop at 10/06/2022 - 09:19
I was discussing them in work today and someone said the place was supposed to be haunted! ... I have to be honest the thought crossed my mind as I processed them and was waiting for a figure to be present in an image
A good set of photos, by the way ... whether that's due to the excellent photographic sensibilities of yourself or the spooks !
Steve
Comment by Lubbyman posted on 20 of the Boys Village - St Athan - FA 28mm first real test! at 08/06/2022 - 17:26
Last one, the clouds seem over-exposed and the leaning verticals on the right make me feel queasy!
Steve
Comment by Lubbyman posted on Three from today's walk. at 08/06/2022 - 17:15
Steve
Comment by Lubbyman posted on Another pointless thread at 08/06/2022 - 17:10


Steve