Category: photography

About taking pictures

Aperture 1.0.1 update

Drew mentioned that Apple released an update to Aperture. This is probably the first of many though don’t expect anything major:

  • White balance adjustment accuracy and performance
  • Image export quality
  • Book and print ordering reliability
  • Auto-stacking performance
  • Custom paper size handling

Aperture depends on the ImageIO Framework to do the file handling and Core Image to do the majority of the heavy lifting in the UI. So the largest changes should be expected when Apple updates the operating system, not Aperture.

Posted on by tychay 0

Pringles white balance

77mm ExpoDisc

“ExpoDisc White Balance Filter” by ExpoImaging

Carl Weese has an article today about using the ExpoDisc for digital white balance with some interesting history: it was used in 35mm film photography, before it found new life in digital.

ExpoDiscs are basically neutral translucent white filters or caps that allow you to take a white balance or exposure meter reading of the incident light, a couple are slightly cool colored which will shift your your photo to a more pleasing warmer color for skin tones. Sounds fancy, huh? They cost $60-$180.

Continue reading →

Posted on by tychay 2

Aperture

Pounc-erture

“Pounc-erture” by tychay

I couldn’t resist the call of the Jobs and went and purchased Aperture!

I did a computation at work today and decided that Aperture must have hit the shelves today and a quick call to Apple Store proved me correct. Apple Store Palo Alto had already run out, but there were a number of copies available at the Mini Apple Store in Stanford Mall. (Yes, living in the Bay Area does have its advantages…)

I never purchased at a Mini Apple Store before. They don’t even have a cash register there, just a hole in the wall with a bunch of drawers. They actually took my credit card using a Symbol PDA and e-mailed me my receipt (because they had my name and dotMac account on record in the central computer).

Since we were in Palo Alto, I had to make the required stop for Caitlin for dinner at Patxi’s. We opened the box there while waiting 40 minutes for our pizza to cook. Someone from the 14-person long table came up to Caitlin, who was reading the box, and said, “Excuse me, I want to thank you—half the Apple Aperture team is sitting over there.” We turned around and got an ovation as their first real-live customer.

I should carry my camera around more often.

Continue reading →

Posted on by tychay 7

Cat eyes (and flash)

First picture of Pounce

“First picture of Pounce” by tychay
( Olympus C-2500L ) ƒ3.1, 1/60sec, iso 100, 18.6mm (56mm), built-in flash

Anyone who has taken a flash photo of their cat is aware of the cloudy yellow/green reflection in their eyes. Such was a topic of discussion on Flickr Technique.

The reason for this is that cat eyes have a reflective coating in the back of their eyes called the tapetum. Nocturnal animals have this so that light passes twice through the transparent rods/cones of their eyes creating a second opportunity to absorb the photos and resulting in better night vision—at the price of some acuity of vision because of the folded optical path. Light comes from two distances and cats are far-sighted anyways.

Pretty neat piece of evolutionary engineering.Continue reading about red eye in photography after the jump.

Posted on by tychay 1

APS-C vs 35mm

Petteri Sulonen has written an article about deciding between dSLR sensor sizes, which is related to my previous entry. He is switching from Canon EOS 20D (1.6x APS) to EOS 5D (full frame) and writes:

My gut feeling when looking at what’s available now and what it needs to do is that the successor to 35 mm film is, indeed, digital APS-C. Full-frame is a little too hot (most lenses at most apertures and most focal lengths can’t quite keep up with the demands of the format, and the chips are difficult and expensive to produce, at least at the current state of the art), while 4/3 is a little too cold (Olympus has been forced to come out with monster f/2.0 zooms to provide even rudimentary available-light capacity, given the comparatively poor high-ISO performance of at least the current 4/3 sensors), while APS-C is just right — the sensors sharp enough and fast enough for almost any purpose, without putting too burdensome demands on the lenses.

I agree with him whole-heartedly. It is not that I wouldn’t jump at a 35mm sensor if I could afford it, it is that I don’t because I can’t.

Continue reading →

Posted on by tychay 10