Archived posting to the Leica Users Group, 2017/01/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Clearly, you?re taking us into new territory Doug - the combo simply shines and the birds sing for us thanks to you (and Leica AG I presume too) Wonderful set, really stunning! Thanks to you, Leica is now up to its reputation again. Skip school, play truant, do something imaginative to get out and shoot lots more with it before the season is out. Thanks for sharing it all. Amities Philippe > Le 7 janv. 2017 ? 18:28, Doug Herr <wildlightphoto at earthlink.net> a > ?crit : > > 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