Monday, April 15, 2019

Sigma 28-105mm F3.8~5.6 UC III Aspherical IF

Sigma 28-105mm F3.8~5.6 UC-III Aspherical IF 01
Sigma 28-105mm F3.8~5.6 UC-III Aspherical IF 02
Sigma 28-105mm F3.8~5.6 UC-III Aspherical IF 03
Sigma 28-105mm F3.8~5.6 UC-III Aspherical IF 04
Sigma 28-105mm F3.8~5.6 UC-III Aspherical IF 05
Pentax MZ-7, Sigma 28-105mm F3.8~5.6 UC III Aspherical IF

Analog Diary:

Sigma 28-105mm F3.8~5.6 UC III Aspherical IF

'Five frames on a trip downtown with the Pentax MZ-7 and Sigma 28-105mm F3.8~5.6 UC III Aspherical IF zoom'

The Sigma 28-105mm F3.8~5.6 UC III Aspherical IF, a followup of its predecessors the UC and UC II, is another zoom that I can use on the Pentax MZ-7 that I have. The lens too, came attached to another camera body that I bought online.

Pentax MZ-7, Sigma 28-105mm F3.8~5.6 UC III Aspherical IF
The lens, an upgrade of the previous versions, is of a new lightweight design. This includes the use of aspherical optics and new mechanical construction.

The internal focusing system and a non-rotating front barrel for convenient filter use of the previous version are, however, retained.

This compact and lightweight lens, with excellent imaging capability and is easy to use, is rated highly by reviewers which I tend to agree with.

A bit on the negative is the focus ring of the lens, though fast when used manually, is rather loose and sloppy.

Pentax MZ-7, Sigma 28-105mm F3.8~5.6 UC III Aspherical IF

Images were shot on a roll of recently expires Fuji Superia 200, scanned at 2400 bits, and was post-processed on Olympus Viewer 3 (OV3), with final print sharpening on Google NIK Sharpener Pro 3.


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