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DPChallenge Forums >> Photography Discussion >> What ASA do you shoot at?
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Showing posts 1 - 25 of 31, descending (reverse)
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04/08/2004 11:40:46 AM · #1
my camera's base setting is 160, so that's what i always try to shoot at, unless i really need to bump it up cuz of lighting.
04/07/2004 07:36:01 PM · #2
Wow thanx all, guess my 200 setting is way off. And since I take most of my photos outside 50 may work well, at least 100 and no more.
04/07/2004 02:14:55 PM · #3
Its the conditions that dictate what I shoot at, at the moment the weather is not too good over here, not much sunshine about! I seem to use 400 for a lot of my shots at present but with the noise so low I often use 800 and 1600. I did manage a few shots at the weekend at 100! I wish the 300d went down to 50 for those hot sunny days we have over in the UK! I used to shoot Kodachrome 25 or Kodacrome 64 ASA as it was in those days I was sationed in Cyprus in the early 70's, on my film SLR. Kodachrome 25 really produced wonderful rich colours.

Taken at ISO 100 // Taken at ISO 800 // Taken at ISO 1600



Message edited by author 2004-04-07 14:28:29.
04/07/2004 02:05:52 PM · #4
I will shoot in 100 or 200 most of the time, I'll use 400 if I plan on converting to B&W as the noise will be more acceptable as grain. The 800 on the A1 is, sadly, nearly worthless.
04/07/2004 02:00:54 PM · #5
Choosing an ISO setting isn't too complex usually. What matters is the shutter speed you need to capture your desired image. When shutter speed is not an issue, I always shoot at the lowest ISO possible. When working from a tripod and shooting a still scene, I always use ISO 100.

When I am hand-holding the camera, I pay attention to my meter. If the meter is suggesting a shutter speed slower than 1/60 second, I will generally increase the ISO until I get to a speed I believe is comfortable for a hand held photo.

Camera shake becomes a problem in telephoto shots when hand holding. As a general rule of thumb, I try to use the fastest possible shutter speed to eliminate shake. With my camera, the ISO noise levels are completely acceptable up to ISO 400 and 800 in most cases. ISO 1600 will produce noise that is noticeable on screen and in print.

Noise isn't always a bad thing.

Hand-Held ISO 1600 Example

I photographed a band last weekend using my 50mm f/1.8 lens. The f/1.8 aperture still only allowed me to have a 1/15 second shutter speed for this shot. The available light was terrible. At ISO 1600, the noise is visible, but at ISO 800 or lower, the shot would have been impossible. Most of the photos I made on this shoot were no good.

Another ISO 1600 Example

This photo was also made at ISO 1600. The noise is barely visible in this image. The amount of available light plays a role in the amount of noise you will get.

Experiment with it.

:)

04/07/2004 01:43:07 PM · #6
I tend to shoot at the lowest ISO that'll give me a sharp shot. With my 70-200 F4L I'll usually shoot at 400 when doing sports stuff. I don't hesitate to use 1600 on my 10D if it's necessary, but don't use 3200 much...this I think was f/1.4 at ISO 1600.



Message edited by author 2004-04-07 13:44:08.
04/07/2004 01:18:16 PM · #7
I try to shoot at 50 whenever I can (90% or greater). Sometimes I accidently put it in AUTO though.

When I was shooting film I almost never bought ASA greater than 200. I figured if I couldn't get the shot without the grain the higher ASA imposed, then it wasn't worth taking.
04/07/2004 08:27:58 AM · #8
400 almost all the time
04/07/2004 08:12:56 AM · #9
Mostly at ISO 100, though I'll use ISO 200 to get a bit more contrast into the shots. 400 for sports and I try to avoid going faster as the colours and detail suffers. 800 and 1000 if I need them to get the shot, but the results are usually not that printable.
04/07/2004 07:52:30 AM · #10
I shot this at 1600
//www.dpchallenge.com/image.php?IMAGE_ID=64929
04/07/2004 06:26:38 AM · #11
hehe, I hate days like that
04/07/2004 06:20:54 AM · #12
Originally posted by Konador:

ISO 4000 on the 300D?


LOL, what an ar*e... looking at the wrong bit.... Today should be a Monday...

4000 is the shutter speed. Well spotted!
04/07/2004 06:19:16 AM · #13


Shot at ISO 96,000.

It was the dead of night; no moonlight. 1/60"
I did have to use +1/3 exposure compensation, tho.

Actually I normally shoot at ISO 100 or 200 with models. I tend to shoot 200 up to 800 with high school sports since the majority of the games are played late afternoon and into the twilight hours and I need some of those 1/500" or faster to capture the action (daylight savings time is a godsend).

Kev

Message edited by author 2004-04-07 06:54:07.
04/07/2004 05:46:24 AM · #14
This was shot at ISO 14000!!!!!

04/07/2004 05:34:56 AM · #15
ISO 4000 on the 300D?
04/07/2004 04:15:21 AM · #16
Edinburgh's Torchlit Procession


Shot at ISO 1600


Shot at ISO 1600

Think that's the only time I've really changed the ISO, maybe once or twice up to 200 but that's it.

*edited : coz I wasn't looking properly...

Message edited by author 2004-04-07 06:21:31.
04/07/2004 04:02:59 AM · #17
Originally posted by General:

Even in Digital medium it matters what iso speed you shoot at. Slower speed the better , same as Films.

i shoot 90% of time in 100 rest 10 % at 50


I use 99% 50. To my knowledge (not sure about your A40) ISO50 on A70 is the equivalent of 100 on other cameras.
Got this answer on my ISO question on canon A, G, S series
"Tibi: As well as shutter speed and apeture, the ISO rating of the film will make a difference to the exposure. The ISO settings on the A-series cameras are not the same as the film ISOs. ISO 50 on the A70 is nearer to an ISO 100 film."
04/07/2004 03:14:42 AM · #18
i shoot at the lowest ISO that my camera can handle. although, it really is dependent on what shots i'm taking. if i were to do concert shots and needed a good shutterspeed, i'd bump up the ISO. General makes a good point. in film, the higher ISO(or ASA) means that the pictures will look a lot grainier.

in digital, what you get is noise. this is prevalent on images with a lot of black. if you take a digital picture of a black background at ISO 50 or 100, the image will look black. If you take the same picture at a higher ISO, say 1600 for arguments sake, you'll see that the image won't be completely black. you'll see discolorations in the black background.

here's a good comparison of the canon-10d set at different ISOs. The higher the ISO, the more noise you can see in the grey.
//www.dpreview.com/reviews/canoneos10d/page18.asp
04/07/2004 01:08:06 AM · #19
OMG that 3200 shot is amazing. canon is the king.
04/07/2004 01:06:59 AM · #20
yeah, i wouldn't say there's virtually no noise on those 1600 shots - the background is pretty speckled with green and purple. but that's what i'd see at like 400 on my camera, so i'm still really impressed!

i shoot 50 - nothing else. i don't even pretend that my camera can shoot at anything else.
04/07/2004 01:04:19 AM · #21
i guess i usually try shoot at the lowest iso possible... but i am not afraid to use high iso as well, if it means being able to shoot.

here is a ISO 3200 i shot.


Shooting at that jazz club i would always shoot 3200
04/07/2004 01:00:59 AM · #22
Originally posted by outofreachx:

I hope this helps... I took these a few weeks back...


Camera Model Name
Canon EOS DIGITAL REBEL
Shooting Date/Time
3/21/2004 8:16:20 AM
Tv( Shutter Speed )
1/25
Av( Aperture Value )
5.6
Exposure Compensation
0
ISO Speed
1600

And...



Camera Model Name
Canon EOS DIGITAL REBEL
Shooting Date/Time
3/21/2004 8:16:22 AM
Tv( Shutter Speed )
1/20
Av( Aperture Value )
5.6
Exposure Compensation
0
ISO Speed
1600

(virtually no grain whatsoever at ISO 1600 :})


Life is SO not fair! ;)

No, that is quite impressive, especially at ISO 1600. I get that kind of noise on ISO 200
04/07/2004 12:54:03 AM · #23
Mostly 100.
04/07/2004 12:51:02 AM · #24
Even in Digital medium it matters what iso speed you shoot at. Slower speed the better , same as Films.

i shoot 90% of time in 100 rest 10 % at 50
04/07/2004 12:31:26 AM · #25
I hope this helps... I took these a few weeks back...


Camera Model Name
Canon EOS DIGITAL REBEL
Shooting Date/Time
3/21/2004 8:16:20 AM
Tv( Shutter Speed )
1/25
Av( Aperture Value )
5.6
Exposure Compensation
0
ISO Speed
1600

And...



Camera Model Name
Canon EOS DIGITAL REBEL
Shooting Date/Time
3/21/2004 8:16:22 AM
Tv( Shutter Speed )
1/20
Av( Aperture Value )
5.6
Exposure Compensation
0
ISO Speed
1600

(virtually no grain whatsoever at ISO 1600 :})

Message edited by author 2004-04-07 00:32:31.
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