![]() ![]() If shooting in live view is the only way the staff review could get the AF to work correctly, that's a significant handicap.Ģ) Yes, there are workarounds, but they shouldn't be necessary. It is in the nature of DSLR photography to shoot through the eyepiece, or we'd all go mirrorless. The problem is that lens betrays you when it really mattersĮnglish is not my native language so sometimes I sound like Tarzanġ) The staff review here praised its optical performance to the high heavens while panning its AF performance on anything but live view. Has anyone done customization over USB dock on this lens and managed to bring lens in a "usable" condition? Is it possible that we share this results and make some kind of comparison?ĭo not get me wrong when the lens focuses accurate results are excellent. Frankly, it annoyed me so much that it almost became a flying lens.īut there is no surrender In the future I will definitely strongly consider before buying Sigma lens. I have a USB dock and I really made an effort to adjust it according to the instructions(for K-3). For this price I expected less problems with this lens. **hopefully, with divorce rates being what they are.and all that Ashley Madison controversy going on.I sign under everything written. You need a high contrast, target for accurate repeatable calibration at f/1.8. To be honest: if you are buying this lens hoping it will perform perfectly out-of-the-box to document a once-off** event like a wedding this, this particular lens isn't worth the trouble, It is simply too unreliable. It can be downloaded from the sigmaphoto website.Įven if you do all of this perfectly, there is still a high chance your lens will never be absolutely reliable or accurate at apertures wider than f/4 Remember to stop the lens down, I know you probably want to use this lens at f/1.8 all the time, but the reality is at the f/4 ~ f/11 aperture range you will have a higher keeper rate.Īt least the calibration software is free. Get the Sigma lens dock, calibrate your lens properly with an accurate target*, and be warned that focusing on anything at a distance between 2m and infinity has at least a 90% of being out of focus at f/1.8 - and the bokeh from this lens is rubbish at that distance, it only delivers smooth results with acceptable consistency at focus distance of 0.5m or shorter f/1.8. Don't waste your time with in-camera AF corrections, as it is only really designed with primes in mind. If you do choose to get it, spend some time getting to know its quirks, and the situations where it is likely to be less than accurate. The lens dock will set you back about $100, a high quality polariser will also cost an extra $200.A proper lens calibration target will set you back about $80 The lens dock is the closest thing to a solution as you will ever get, and even then it is a band aid at best. Testing the lens is rather difficult, there are still optical centering issues present with the ART series lenses despite sigma saying otherwise. Want a preview? Click on any page below to see an excerpt as well as extensive blog coverage, for example on Nikon or on Canon or on Pentax.Buying a good copy is the ticket - but the chances of that are certainly against you. Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh. ![]() Make sharper images just by understanding lens behavior you won’t read about elsewhere. Real world examples with insights found nowhere else.Jaw-dropping image quality found nowhere else utilizing Retina-grade images up to full camera resolution, plus large crops.Many examples show processing parameters for direct insight into how the image was converted. Workflow discusses image organization, raw conversion and post processing.Save money by choosing the right lens for your needs the first time, particularly some of the new Sigma Art lenses vs Nikon and Canon.Make better images by learning how to get the best results right away.Special emphasis is placed on lens evaluation, focusing on Canon and Nikon and Sigma lenses, but with a few others like Rokinon/Samyang. Much of the focus is on Canon and Nikon but also Pentax and Pentax medium format. BEST DEAL: get full access to ALL 8 PUBLICATIONS for only 68 cents a day ($249.95)!ĭiglloyd DAP is DSLR-oriented, but also contains workflow and other topics. Subscribe now for about 16 cents a day ($60/year). Diglloyd Advanced DSLR is by yearly subscription. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |