Incense

by Bart Arondson

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958 reputation
616
bio website
location ND
age 31
visits member for 2 years, 5 months
seen 22 hours ago

Sep
13
comment Demosaic data stored in TIFF
@PatrickHurley I have a single channel which looks like no. 2 here. I'm looking for a tool that'll reconstruct no. 4. I'm not looking to implement it myself.
Sep
13
comment Demosaic data stored in TIFF
Use case: same as here.
Sep
13
accepted How can I change the pixel data in a DNG while keeping all the metadata?
Sep
13
asked Demosaic data stored in TIFF
Sep
12
answered What Windows software can assemble a sequence of photos into a timelapse?
Sep
12
comment What Windows software can assemble a sequence of photos into a timelapse?
ffmpeg can do this. It's a command line program that works on all major platforms, including Windows. I have used it on Windows to assemble a time lapse. It's free and relatively easy to use (compared to other command line alternatives).
Sep
7
comment Canon 70-200 f2.8 non IS or f4 IS
Take a look here and here
Sep
5
comment Does shooting RAW vs JPEG have a significant effect on battery life?
You don't lose quality by shooting JPEG. You only lose some flexibility of adjustment. Since the result is downscaled anyway, even a small size JPEG is good enough.
Sep
5
comment How does software raise exposure in post-processing?
@Octopus There are no separate channels in RAW sensor data. What you get from the sensor looks like the 2nd picture here. In a RAW converter exposure compensation would be applied before demosaicing, using a formula similar to yours. As I said, your formula is simply incorrect if you apply it to RGB values. It's only correct for (linear) raw data coming form the sensor.
Sep
4
comment How much does a camera move in 1/250 of a second?
The shutter speed needed to avoid motion blur will depend on the focal length of the lens. With a telephoto lens even a slight movement translated to very visible shake in the viewfinder. The guideline I've seen most frequently is to use a shutter speed 1/2f with a lens of focal length f. Thus with a 30mm lens 1/60 s should be rather safe to use.
Sep
4
revised Does shooting RAW vs JPEG have a significant effect on battery life?
added 70 characters in body
Sep
4
revised Does shooting RAW vs JPEG have a significant effect on battery life?
deleted 3 characters in body
Sep
4
answered Does shooting RAW vs JPEG have a significant effect on battery life?
Sep
4
asked Does shooting RAW vs JPEG have a significant effect on battery life?
Sep
4
comment Portable tripod recommendations for those on a budget
@dpollitt I managed to borrow a Benro A0690T today (~$150), I'll try it during the week to get an idea about what compromises I'd be making with this model exactly.
Sep
4
comment Portable tripod recommendations for those on a budget
@DanWolfgang It still seems like most vocal people here are simply not interested in cheap tripods, as they consider them equally bad. That's okay, but I find it unfair to close the question just because of that. There are quite a few options below $100, and many below $150. I'm sure they're not made equally so for those who can't afford sums matching a U.S. salary the discussion is not at all irrelevant.
Sep
2
comment Portable tripod recommendations for those on a budget
@dpollitt ... this particular cheap tripod and it has these particular faults which prompted me to get a better one". All I see is people echoing that "you need to spend more" on just about every topic, to the point where someone asking advice about his first camera is suggested to spend several thousand USD because he mentioned "weddings and picnics". My past experience with other items makes me very skeptical about these opinions. What I'm looking for is opinions and experiences from people who have actually tried to use such a budget tripod.
Sep
2
comment Portable tripod recommendations for those on a budget
@dpollitt Here's one and another one. I find that the mentality that you need the most expensive of everything even for the most basic tasks is much too common in the online photo community, especially among people from certain countries. I don't see any posts saying that "I got ...
Sep
2
comment Portable tripod recommendations for those on a budget
Do you have one of these two, and if yes, can you give an opinion? According to the specs, folded it's 47 cm, so it's still quite large. I'd compromise on weight sooner than folded length.
Sep
2
comment Portable tripod recommendations for those on a budget
(The gorillapod is a good idea though, I saw it mentioned, and it's my fallback option.)