Monday, October 2, 2017

Digital Moments: Tamron SP 28-80mm f/3.5~4.2 CF Macro

Tamron SP 28-80mm 1:3.5~4.2 CF Macro 01
Tamron SP 28-80mm 1:3.5~4.2 CF Macro 02
Tamron SP 28-80mm 1:3.5~4.2 CF Macro 03
Tamron SP 28-80mm 1:3.5~4.2 CF Macro 04
Olympus Pen E-P5, Tamron SP 28-80mm 1:3.5~4.2 CF Macro

Tamron SP 28-80mm f/3.5~4.2 CF Macro

Tamron SP 28-80mm 1:3.5~4.2 CF Macro
'A quick take session with the Tamron SP 28-80mm f/3.5~4.2 CF Macro adapted to the E-P5'

Compared to the Sigma Zoom-Gamma 21-35mm f/3.5~4, which I used to start off the Digital Moments series with a collection of wide angle and standard zooms adapted to the Olympus E-P5, the Tamron SP 28-80mm f/3.5~4.2 CF Macro, weighing in at a hefty 480 grams, is a bit of a monster and a heavyweight, but is available on the auction sites for a fairly low price. The lens with its own accolades and disapprovals on the reviews.

That aside, the unit that I have come attached to a super sterling Olympus OM-1n, and at the offer price of a dollar less than USD 50 on the day it was listed, it was an offer I took up without a second to lose. Did all the necessary tidings, and the camera and lens arrived on my doorstep within the week.

Tamron SP 28-80mm 1:3.5~4.2 CF Macro 05

Tamron SP 28-80mm 1:3.5~4.2 CF Macro
On the 2x crop-sensor Olympus E-P5, the lens is now is a short to medium tele-zoom with equivalent focal lengths from 56mm to 160mm. This should do well if you take into account that favorite prime focal lengths, especially the 55, 85, 100 and 135mm's are all incorporated into this lens. An 85mm prime, as you already know, is always the favorite for portrait photography, while the 135mm do as well for catwalk models.

The one thing that you lose out within this comparison is the light gathering capacity of the lens. Operating at the maximum aperture of 1:3.5~4, you will lose between one to two aperture stops when compared to 1:2.8 apertured primes.

The other concern is the weight and the balance of the lens when attached to the E-P5 vis the Olympus MF-2 Adapter. The whole extension is now 120mm long, very heavy upfront, with the most fragile point (you can tell by looking the image) being the connection between the E-P5 body and the MF-2 adapter.

Tamron SP 28-80mm 1:3.5~4.2 CF Macro 06

Using the camera on a tripod with such a configuration will definitely be a strict no-no, and for handheld shooting you need to be sort of a contortionist to be able to hold the camera reverse tripod like in the cradle of your palm, while using your index finger and the thumb for focusing, and your middle finger and the thumb for zooming.

The image of the Adenium obesum, above, is about the sharpest yet that I can achieve with the Tamron SP. The shot was made against a bland sky, aperture setting on the lens was preset to 1:8, and the camera recorded a shutter speed of 1/500 at ISO 200 with exposure compensation set to +1.

Olympus PEN E-P5, Tamron SP 28-80mm 1:3.5~4.2 CF Macro

Post-process edits on Olympus Viewer 3 (OV3) include Auto Tone Correction, Crop, Tone Curve, Brightness & Contrast, and Hue & Saturation. Final print sharpening, the same as with the rest of the images, was done on Google NIK Sharpener Pro 3.

The rest of the images, top-down, are action shots on a local RC boat derby day at a nearby park, showing images from widest and the shortest ends of the tele, cropped action images of the boats flying across the surface of the lake, and one of the marshalls retrieving a boat that has fallen prey to unforeseen circumstances.


Resource Links:
Tamron Adaptall-2 SP 28-80mm f/3.5-4.2 (27A)
Tamron SP 28-80mm (27A)

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