Monday, April 15, 2019

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

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

'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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Monday, April 8, 2019

Mobile Photography, A Cinematic Sunday

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Mobile Photography, A Cinematic Sunday

'A day out with the discontinued Nokia Asha 300, and cinematic crop images'

No, I am not into movie-making here, just the fun of having a few images cropped to the 2.4:1 cinematic image aspect ratio and a visual storyboard of a Sunday outing with the Nokia Asha 300, the camera phone I have been regularly using for the past few months.

The 2.4:1 cinematic image aspect ratio or anamorphic format is a cinematography technique that shoots a widescreen picture on standard 35 mm film or other visual recording media with a non-widescreen native aspect ratio.

When projected, the 'distorted' images are again stretched an anamorphic projection lens to recreate the original aspect ratio on the viewing screen.

While we do have mobile devices that are starting to use the 21:9 format, these images are not. They were shot on the Nokia Asha 300 at it's native 4:3 image aspect ratio, post-processed and cropped to the 2.4:1 image aspect on Olympus Viewer 3 (OV3). Final print sharpening was done on Google NIK Sharpener Pro3.


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Monday, April 1, 2019

Analog Diary, SMC Pentax-FA 28-80mm F3.5-5.6

Analog Diary, SMC Pentax-FA 28-80mm F3.5-5.6
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Analog Diary, SMC Pentax-FA 28-80mm F3.5-5.6

'A street shoot outing with the Pentax ZX-7 and SMC Pentax-FA 28-80mm F3.5-5.6'

The SMC Pentax-FA 28-80mm F3.5-5.6, a zoom lens introduced as a kit lens to the MZ series of Pentax AF SLRs. The lens is available in both silver and black. Though plastic bodied, came with a metal mount that fits the camera nice and snug.

Pentaz ZX-7, SMC Pentax-FA 28-80mm F3.5-5.6
The lens is solid enough for a kit lens, and has a zoom ring that is fairly smooth and not too sticky, rather stiffer around the 28mm and 80mm ranges, and has a front element that wobbles a bit.

Getting the best of the lens means looking for the 'sweet spot', which should be around f/11 at its wide end, and at f/5.6 at the long end.

Low cost and easy to find, and mostly comes included with an MZ/ZX type SLR often listed on the auction sites, the lens should do well as a beginner or backup lens, though it might not end up as a keeper.

Pentaz ZX-7, SMC Pentax-FA 28-80mm F3.5-5.6

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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