In photography, there are two types of distortions: optical and perspective. Both result in some kind of deformation of images - some lightly and others very noticeably. While optical distortion is caused by the optical design of lenses (and is therefore often called "lens distortion"), perspective distortion is caused by...
Post Archive By Nasim Mansurov - Page 57
Nikon 18-35mm f/3.5-4.5D Review
This is an in-depth review of the Nikon 18-35mm f/3.5-4.5D IF-ED, a variable aperture zoom lens that was released a long time ago, in the year 2000. The lens has been recently replaced with the Nikon 18-35mm f/3.5-4.5G ED, which I recently reviewed and praised for its superb performance. I...
Nikon 18-35mm f/3.5-4.5G Review
This is an in-depth review of the Nikon 18-35mm f/3.5-4.5G lens, which was announced on January 27, 2013 together with the super-telephoto Nikon 800mm f/5.6E VR. The lens replaces the existing 18-35mm f/3.5-4.5D, an old autofocus lens released back in August of 2000. With its rather weak optical design optimized...
Zeiss Distagon T* 35mm f/1.4 ZF.2 Review
This is an in-depth review of the Zeiss Distagon T* 35mm f/1.4 ZF.2 lens, a manual focus prime lens for the Nikon F mount. The same lens exists in "ZE" version for the Canon mount, which shares identical optical design, but with a slightly different body design (no aperture ring)....
What Makes Exotic Lenses So Special?
With so many exotic lenses on the market today, one might wonder about what makes them so special when compared to other lenses. While there are clear differences between consumer and professional-level lenses, as explained in our "why are some lenses so expensive?" article, exotic lenses seem to focus more...
Why Are Some Lenses So Expensive?
Every once in a while, I get asked why some lenses are so much more expensive compared to others. Interestingly, this question comes from both beginners and advanced photographers, but in different contexts. Beginners want to know why pro-level lenses are a lot more expensive than consumer lenses, while knowledgeable...
Lightroom Lens Corrections Explained
Since Lightroom version 3, Adobe has been providing a Lens Corrections sub-module within the Develop Module to correct various optical issues commonly seen on all lenses. It is a very powerful and complex tool that can be applied to one or many photographs with a couple of quick steps, potentially...
Nikon 300mm f/4D AF-S Review
The original review of the Nikon 300mm f/4D AF-S lens was published back in 2009 and was very short. I decided to completely rewrite it, with all the latest information, MTF data, more feedback and sample images, so you are looking at an updated version. If you are a birder,...
Samyang 35mm f/1.4 Review
This is an in-depth review of the Samyang 35mm f/1.4 AS UMC, a manual focus prime lens designed for Nikon, Canon, Sony, Olympus, Pentax, Samsung and Micro Four Thirds mounts. While I will be referring to this lens as "Samyang" in this review, please keep in mind that you can...
Sigma 35mm f/1.4 DG HSM Art Review
This is an in-depth review of the Sigma 35mm f/1.4 DG HSM Art prime lens that was announced at one of the largest photo shows in the industry, at Photokina in Germany on September 17, 2012 for Sigma, Canon, Nikon, Pentax and Sony mounts. The announcement came on the same...