| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "Dongjie, are you referring to the gigapans? They are gigapans embedded here from gigapan.com. " | Read more » | over 10 years ago | |||
| Dongjie | "cool, how do you make the figure like Google streetmap? " | Read more » | over 10 years ago | |||
| cfastie | "The Canon A2200 (refurbished) is on sale today (November 21) for $48.99 (free shipping) with a one year warranty: http://shop.usa.canon.com/shop/e..." | Read more » | over 10 years ago | |||
| mathew | "cool test! this is definitely the most pixels in a research note, as far as I've seen. " | Read more » | over 10 years ago | |||
| mathew | "I think doing calculations based on red and green might be two ways to get to the same result that Chris was seeking in his Oaktober note-- the cha..." | Read more » | over 10 years ago | |||
| warren | "It's weird because we think of green being reflective, but compared to IR, it's very absorbent. " | Read more » | over 10 years ago | |||
| cfastie | "Mathew, That does seem to be a consistent pattern. I think you are right that a green filter might offer the purest visible light channel in a sing..." | Read more » | over 10 years ago | |||
| mathew | "looking at the sensor sensitivity graph for the Nikon D200, its interesting that green is the least sensitive channel in the infrared band, implyin..." | Read more » | over 10 years ago | |||
| cfastie | "Hi Pat, The Wratten 25A is an old standard photographic filter that is still widely available in glass and gel. I think Ned bought a genuine Kodak ..." | Read more » | over 10 years ago | |||
| patcoyle | "Thanks Chris and Ned, this is an encouraging line of inquiry. Remind me on the source for the Wratten 25 filter material, or is it in the prior not..." | Read more » | over 10 years ago | |||
| cfastie | "The aperture mechanism definitely varies among Powershots. By peering into the front of the lens I learned that the high end ones have an actual ir..." | Read more » | over 10 years ago | |||
| timmm063 | "Have you considered watching other sites for cameras that are refurbished? One I would recommend is canonpricewatch.com. It also shows prices for o..." | Read more » | over 10 years ago | |||
| danbeavers | "The filter should have nothing to do with the difference in quality between the center and edge of the image since it is uniform in density. Lense..." | Read more » | over 10 years ago | |||
| cfastie | "I was assuming that the best way to preserve image quality when removing a glass filter would be to replace it with another glass filter. Plastic, ..." | Read more » | over 10 years ago | |||
| warren | "Very interesting line of inquiry. I've always been a bit confused about the role of the filter material itself in focus -- my assumption has been t..." | Read more » | over 10 years ago | |||
| jbest | "The only reason that I would want to fly both at the same is to kill two birds with one stone and get both an NIR and visible light image (in "true..." | Read more » | over 10 years ago | |||
| cfastie | "Thanks for suffering through this. I just converted two A2200s, and they are quite straightforward compared to your experience. As far as I can see..." | Read more » | over 10 years ago | |||
| jbest | "Wow, quick response! I was going to also add this to the "acceptable" category so I'm glad you already did that. I too would not recommend this to ..." | Read more » | over 10 years ago | |||
| warren | "Hi, Hayden - late reply, but it's around 1000-1100nm. " | Read more » | over 10 years ago | |||
| warren | "Oh, man -- Cindy Regalado and I converted a few of these with a group of students at the Waag Society about a month ago and they were a real pain! ..." | Read more » | over 10 years ago | |||
| ikerluna | "Thanks a lot for your help I will try to use the same webcam that u are using. " | Read more » | over 10 years ago | |||
| JoshMc | "Hey ikerluna! I don't know about the webcam you're using or how it's designed, but basically any webcam focus is going to be adjusted by moving th..." | Read more » | over 10 years ago | |||
| ikerluna | "hello JoshMc I want to take pictures at close range, do you figure out how can I fix the focus problem ? Thanks, " | Read more » | over 10 years ago | |||
| warren | "Hi, jyalarid - we are definitely planning a live streaming version of the infragram software: https://github.com/Pioneer-Valley-Open-Science/infrap..." | Read more » | over 10 years ago |