Archived posting to the Leica Users Group, 2017/01/08
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]+1 Lluis > El 7 gen 2017, a les 18:35, Tina Manley <tmanley at gmail.com> va escriure: > > Those are all spectacular!! Feathers and all details are sharp as a tack. > I love the bokeh, too. > > The one with the pomegranate is probably my favorite. The colors are > wonderful. > > Tina > > On Sat, Jan 7, 2017 at 12:28 PM, Doug Herr <wildlightphoto at > earthlink.net> > wrote: > >> Yesterday was my first full day with the SL and 90-280mm zoom. The SL is >> unchanged since I first tried it a year ago, what's new (for me) is the >> lens. Given the storms and family obligations for the next several days >> it >> will probably be another week or more before I can use the camera more. >> >> Recapping my initial thoughts about the SL: the solid construction, >> responsiveness, file richness, the simple, configurable, no-nonsense >> control layout, and viewfinder (with one exception) continue to delight >> me. >> >> I'm still annoyed by the inability to make the viewfinder's exposure >> preview mode permanent; it's enabled by a half-press of the shutter switch >> or can be configured to be activated by the fn button (where the DOF >> preview button is on Leicaflexes). The viewfinder reverts to automatic >> brightness after each exposure. If the subject and background are similar >> tones, no big deal. OTOH if there's much difference between the subject >> and background tones it can be very distracting particularly when using >> spot metering and the subject is dancing around the field of view, as >> avian >> subjects often do. >> >> The 90-280 is spectacular, nearly as good as the 280/4 APO. I haven't >> seen any color fringes either spherochromatic (color fringes in OOF >> high-contrast objects) or laterally. This lens would do well with a >> higher-resolution sensor. Much higher. Which brings up a problem: >> aliasing and moire. >> >> Feather detail, a very sharp lens and a sensor without AA filter can be a >> difficult combination to work with. Moire-reducing software and >> occasional >> cloning out scrambled pixels become necessary for the best quality files. >> This is less a problem with the Sony a7II which has a similar-sized sensor >> and an AA filter. I still see some color aliasing when using the 280/4 >> APO >> on the Sony but not nearly as much as the 90-280 on the SL. Combine the >> Sony with the Canon FD 500mm f/4.5 L and color aliasing is never a >> problem, >> in part because the lens has some lateral chromatic aberration, >> correctable >> with software. >> >> My test subjects were familiar birds in my yard, lured within range of a >> 280mm lens with seed, water and fruit. This was my first opportunity to >> try the SL's AF in the field. I found that the most reliable use of this >> feature was single-point manual focus, which means that a touch of the >> joystick focusses the lens at the focussing point. The SL's AF is quick >> and quiet and assuming it locks onto the right target its accuracy leaves >> nothing to be desired. No micro-adjustment ever required. >> >> As I expected, the AF system focuses on the nearest point within its AF >> area meaning the bird's shoulder or wing and not necessarily its eye. >> Manual fine-focus is possible by pressing the lower-left key on the >> camera's back, with brings up 3x or 5x magnification in the viewfinder in >> two steps. I find that 3x is an excellent compromise that allows critical >> focus over a significant area of the image. I wish the Sony offered this >> option instead of jumping directly to 5x. I also wish the SL would offer >> the 3x option with the joystick button when using non-electronic lenses. >> >> When using a native lens the lower-left key is the only option for >> bringing up viewfinder magnification, so I have to take my left hand away >> from the focussing ring, move it to the camera's back to press the key, >> then back to the focussing ring. Not the most effective technique. Maybe >> I can train my nose to press the key. The 90-280 is a focus-by-wire lens; >> the zoom is mechanical. Both rings rotate smoothly and the resistance of >> the two rings is identical. When using manual focus the focusing ring is >> sensitive to the rate of turning the ring: quick rotation = large changes, >> slow rotation = small changes. Very nice. >> >> The lens's optical stabilization works well, probably better than the >> Sony's sensor stabilization, but subject motion is the limiting factor >> more >> often than the stabilization technology. In practical use the Sony's >> stabilization would have done just as well. >> >> Enough words, show some pictures! >> >> http://www.wildlightphoto.com/temp/L1000046_crop.jpg >> http://www.wildlightphoto.com/temp/L1000065_crop.jpg >> http://www.wildlightphoto.com/temp/L1000091_crop.jpg >> http://www.wildlightphoto.com/temp/L1000108_crop.jpg >> http://www.wildlightphoto.com/temp/L1000116.jpg >> http://www.wildlightphoto.com/temp/L1000131_crop.jpg >> http://www.wildlightphoto.com/temp/L1000206_crop.jpg >> >> Doug Herr >> Birdman of Sacramento >> http://www.wildlightphoto.com >> http://doug-herr.fineartamerica.com >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > > > -- > Tina Manley > www.tinamanley.com > tina-manley.artistwebsites.com > http://www.alamy.com/stock-photography/3B49552F-90A0-4D0A-A11D-2175C937AA91/Tina+Manley.html > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information