Post Archive By Nasim Mansurov - Page 57

Do Filters Affect the Resolution of Lenses?

Just like the old "film vs digital" or the "Nikon vs Canon" debates, lens filters often create endless discussions on the Internet. Some people argue that one should never use protective filters, since it is another piece of glass in front of the lens that reduces resolution and emphasizes other...

Sigma 1.4x Teleconverter Review

This is a detailed review of the Sigma 1.4x Teleconverter EX APO DG for the Nikon mount. I had a chance to test out this teleconverter, along with the 2x Sigma teleconverter when working with the Sigma 120-300mm f/2.8 lens (review to be published within the next week), so I...

Proof that Image Stabilization Should First be Stabilized

I had a number of discussions with other fellow photographers and our readers about Vibration Reduction (also known as Image Stabilization, Vibration Compensation and Optical Stabilization), its behavior and how to best use it. While I will provide detailed information on how to properly utilize Vibration Reduction on Nikon's lenses...

What is Lens Distortion?

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...

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...