Sigma's own proprietary OS (Optical Stabilizer) system enables handheld close-up photography. The lens provides the utmost correction against lateral chromatic aberration which is a serious problem for digital SLR cameras. This macro lens is specially coated to get the best color balance while cutting down on ghosting caused by reflections from the digital image sensor. The improved DG lens design for this lens corrects for various aberrations. An ideal lens for a wide variety of applications from nature photography to portraiture. Rugged mechanical construction also makes it durable enough for even the heaviest use required by professional photographers. The "focus-free" mechanical design allows the lens to autofocus without any interference from the manual focus ring, making it easy to hold the lens without affecting the speed or normal operation of the autofocus function. Contact For more information please contact your nearest service center. Focus on a high contrast area of the chart and take 5 pictures using live view focus. It is not possible to convert a lens to a mount which SIGMA has never released. It is important to clarify that the list of available lens mount conversions corresponds to the list of SIGMA releases. Also, eliminate variables of camera shake and low contrast focus point. Cost of Conversion Mount Service 1170 SEK / 1250 NOK. 4 Determine the best focus the lens can achieve by using live view. A focus limiter helps divide the broad focus range into more manageable chunks. Set your aperture to the maximum aperture of the lens. Its non-rotating front lens group makes it easier to work with polarizing filters. A Special Low Dispersion (SLD) lens and one high refractive index SLD lens provide excellent correction for all types of aberration and distortion. It''s obviously not designed or built as well as the Canon lenses.The Sigma 105mm f/2.8 EX DG HSM Macro Lens for Canon EOS Cameras delivers superb, distortion-free images throughout its broad focus range, from infinity telephoto to life-size ( 1:1) macro, as close as 12.2" (31 cm) without accessories. This lens has not gotten particularly rough treatment by my standards. I''ve had my EOS for 11 years, and my Canon lenses about the same. Nothing else in the bag was harmed, padded or not. It broke just behind the zoom collar, where it appears that the front of the lens is joined to the rear with three small plastic L shaped brackets (about 1/4 inch each). Similar Products Used: Sigma AF 24/50 f/4-5. This lens does not deserve a repair, if broken. Maybe my sample was defective or something, but results are simply disappointing even for a lens so cheap. The Sigma is now almost completely in two pieces. I really cant believe this is a modern Sigma lens. In it was my Canon EOS and this lens, inside a padded camera bag, my flash, and my Leica point and shoot (not padded). The other day I knocked my backpack off a chair. This lens is slow, and performs poorly wide open. Will somebody please make a zoom in this range with a constant 2.8 that costs under $400. The results are nowhere near as sharp and contrasty as my Canon lenses, even though they weren''t much more expensive. I''ve had this lens for two years, and I''ve never been fully satisfied with the optical quality, especially with color negative film. Lens cap doesn''t stay on when you focus all the way to infinity unless you have a filter on because the It''s obviously not designed or built as well as the Canon lenses. Lenses: 4.5mm F2.8 EX DC Fisheye 8mm F3.5 EX DG Fisheye 10mm F2.8 EX DC Fisheye 15mm F2.8 EX DG 20mm F1.4 DG HSM A 20mm F1.4 DG DN A 24mm F1. Nothing else in the bag was harmed, padded or not. SIGMA service tariff Mount conversion service Register extended warranty Where to Buy FAQs Downloads/Firmware Teleconverter chart Select News About SIGMA My SIGMA. The Sigma is now almost completely in two pieces. Here you can find information regarding inspections or repairs of your products. Will somebody please make a zoom in this range with a constant 2.8 that costs under $400. The support site of camera and lenses manufacturing company SIGMA.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |