glass reflection in red and blue

setup: pentax af200sa direct from the rear, red and blue corrugated plastic boards as background.

cherry tomatoes

i remember that when i was small, the default/standard way to draw an apple for me will be to draw it with 2 specular highlight spots at the side - one large long-ish spot and another small one. the tomato at the far right of the photo above illustrates this well ^_^.

vivitar 28mm f2.8 close focus wide angle

vivitar 28mm f2.8 mc close focus wide angle

focal length: 28mm
aperture range: 2.8 - 16
aperture blades: 6
min. focus distance: 0.23m
construction: unknown
weight: n/a
filter size: 49mm
mount: olympus om (also available in various other mounts)
serial #: 28xxxxxx
purchase price: ??? GBP (+ 6 GBP shipping & handling)

the lens extends a little when focusing from infinity to closest focus. the front element does not rotate on focusing. distance scale is provided in both feet (white) and meter (green), plus additional blue markings for close focus magnifications. the lens can focus as close as 23cm, resulting in a maximum magnification of 1:5.

 
photos: the lens at infinity, and also at closest focusing.

aperture scales are indicated in full stops, with half-stop detents between each stops. being an om mount, there is also a button to stop down the aperture for dof preview on the lens itself. there are 6 aperture blades.

this lens takes 49mm filters and accessories. serial number indicates that this was manufactured by komine. on a canon aps-c dslr, it gives an equivalent field-of-view of 44.8mm, so it's not really a wide-angle anymore.

 
photos: front and back views, with canon ef mount adapter attached.

side note: first attempt at using a d.i.y. lightbox (psst... it's actually an old white nylon laundry hamper). shot handheld using only the built-in pop-up flash and ambient lighting for illuminations (no tripod, and no external flash... poor me). 2 pieces of white papers are held in front of the flash to diffuse the light and reduce the intensity.

on another note, i just learnt today that the camera will not retain some settings when switching between shooting modes (e.g. from aperture-priority to manual). i initially had the camera set to shoot raw, and then switched modes without rechecking. all along i thought i was shooting in raw, and was bloody surprised when i loaded the files into my pc and realised that they're all jpegs. thankfully i got most of the exposures correct in the first place. lesson learnt: always check and confirm the camera settings.