On Mar 23, 2006, at 8:32 AM, Bob W wrote:

At what ratios does a rectangle become a panoramic format?

When I set up an "orientation" field in my database, I drew the line at 2:1. This is not an attempt to define a hard rule; it's just my interpretation. For my website I set up the panoramas in a separate browser, and I also implemented a search feature where you can limit the results to certain aspect ratios. I could probably merge the browsers now that I've added an automatic layout function, but I like the idea of making the panoramas "special".

Incidentally, I found it much harder to decide what's considered "square". I noticed that a horizontal 6x7 shot looks much squarer than a vertical one. Because of that, I set up different limits as follows:
Horizontal format is called "square" if its aspect ratio <= 1.25
Vertical format is called "square" if its aspect ratio <= 1.15

Those numbers were derived by measuring Pentax 6x7 and RB67 frame sizes, and studying which photos in the database would be considered square vs rectangular. IIRC one of the cameras shot much closer to "square" than the other (I think it was the RB67).

It all sounds very boring, but sometimes you just have to sit down and quantify stuff.

- Dave

Reply via email to