Thanks Manuel and Michael
Manuel: Really nice shot... love the mountains in the background .. lovely rays of sunlight
Micheal: Great dogshot
mco_970, Harry and Charles.. Great shot also
rji2goleez wrote: navmannz wroteAs promised, here are two early shots with the Voigtlander Ultron 21mm that arrived yesterday. The first is of a wall of the library at the nearby University that I find provides an excellent test of distortion - I applied very slight distortion correction in LR6 (+4) and rotated slightly to compensate for my poor framing. This was shot at F/5.6 and showed some magenta cast around the periphery, which cleaned up easily in LR6 using a radial filter. It also showed some minor colour fringing along the high contrast edges that almost completely disappeared when I turned on LR's auto-correction.
The second was taken using Sony's lens compensation app of which I was initially sceptical. However, once I pointed it at a grey wall and adjusted the overall vignetting and the magenta cast it proved very straight forward to use, with the illumination and cast correction changes written into the raw file. Post-processing correction here is largely limited to the addition of a graduated filter to correct the uneven illumination and to apply some local clarity.
My overall impression is of a very useable option in this focal length - way ahead of the Canon FD 20 in terms of corner sharpness, and none of the moustache type distortion shown by the 21mm distagon - and much lighter and at 1/3 the cost. Corner sharpness is excellent once stopped to F/5.6 and both infinity and close sharpness in the central part of the image is exceptional. The contrast might not be as high as for some of my lenses, but nothing to complain about - it shows reasonable resistance to flare. The major downsize is the fixed hood, though I'm in discussion with an engineer friend about how best to rectify that. I'll wait until I'm really sure that I'll keep it before attempting any modification. Overall I'm very happy with it! John Thank you for this review and keep them coming. I've been looking at this lens for a long time now and once again, I have to put it high on my list! Perhaps you can post an image that shows some of the effects you mention before and after cleaning up in LR. Glad to hear that any cleanup needed is minimal.
Bob, I've now carefully fine-tuned the lens compensation app settings (white wall in the loo) for the CV Ultron 21 (illumination: +15, magenta-green: -3, and yellow:blue: -9), and IMHO it performs very well at correcting the illumination and colour cast problems with this lens, with the corrections written into the raw file.
To demonstrate, I've loaded three images (cold and grey winter day here, so rather boring), all shot at F/5.6 and with luminance equalised on the wall blocks below the window in the centre. The first is with the lens compensation app turned off and no correction, the second is a LR corrected version of the first using a radial filter (inverted) with increased exposure + colour temperature correction - rather hard to tune. The third was shot with the lens compensation app turned on, but with no correction other than to adjust its exposure so that luminance on the blocks dead centre was set to the same as for the other two. Suggests to me that the lens compensation app is the way to go, particularly given that colour cast correction component (as opposed to the vignetting) seems to be stable certainly through the lower part of the aperture range - I've not tested its sensitivity to focus distance, which might alter given the change in distance between the back element and the sensor.
John
Ultron 21 F/5.6 uncorrected
Ultron 21 - corrections applied with radial filter in LR6
Ultron 21 - corrections applied via Sony's Lens Compensation App - only minor changes to match other images
Sorry, I have been swamped with work recently and hence haven't had any chance to post as of late. Great to see that this thread is still going strong, as it is heading towards 1,000 pages.
Charles, you made the most out of the available light. The colors in the fallen leaf shot are beautiful.
Ronny: Impressive macro work with the MP 100 again. As somebody who is always struggling with color balance, I'm always impressed by how naturally beautiful your pics look.
Best regards - HermannWhere was it?Saint Saturnin d'Apt?There were the times between 1997 and 2003,when I was spending every summer and spring holidays at the south sides of Le Luberon.
@ Peire: Hi there, sorry for the late response (being on the road). As the title diplays, it was taken recently in Goult, Vaucluse, Alpes-Côte d'Azur (Place de la Liberation, BTW). And thanks of course for your interest!
Ronnie are these damselflies or dragonflies? Always wondered about their size. In our area dragonflies are usually fairly skittish, so guessing damsels perhaps??
They are beautiful, and well captured in your photos.
mco_970 wrote:
Ronnie are these damselflies or dragonflies? Always wondered about their size. In our area dragonflies are usually fairly skittish, so guessing damsels perhaps??
They are beautiful, and well captured in your photos.
Thanks
count probably to damselflies .. and Beautiful demoiselle to
Sry for the double post
Beautiful demoiselle
Sony A7 + Zeiss Makro-Planar T* 100mm f/2 by Ronny Olsson, on Flickr