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whispers
10-31-2005, 05:08 PM
What does the ISO mean? and what does tweaking it one way or the other do?


on my G5..I jst have it on AV setting (I believe)...but I sometimes see things on the display..and I thought ISO 100 was one of them)...

thank you.

ToddSm66
10-31-2005, 05:20 PM
ISO is basically a measurement of film speed...as in how sensitive your film or digital sensor is to light.

The lower on the ISO scale, the slower the film is...so if you are using ISO 25, 50 or 100 film, and shooting in low light, you will get low shutter speeds and likely need a tripod.

The higher up you go on the ISO scale, the faster the film is. So at ISO 800, 1600 or 3200 you can get faster shutter speeds in low light conditions.

The drawback to using a higher ISO is a dramatic increase in film grain or digital noise.

whispers
10-31-2005, 05:24 PM
thank you...I think I may need to jack mine up...(wonders how much it can go up to)

ToddSm66
10-31-2005, 05:27 PM
Play around with it and look at the results. I very rarely go higher than 100, which is as low as I can go.

A situation where you might want to bump up to a higher ISO would be if you were shooting something like a basketball game in an indoor arena. Would need a faster shutter speed to freeze the action, thus a need for a higher ISO setting.

aversion
10-31-2005, 06:43 PM
Generally the lower the ISO the better. The G5 goes down to 50 but anything over 200 is pretty damn noisy on the camera, I used to have one. Raise the ISO only when you really need to, when you can't get an exposure that's fast enough to hand hold or capture the action in your subject.

whispers
10-31-2005, 06:54 PM
ok....Im just trying (ie: reaching).... for soe reason I just dont think I get the best pictures out of my camera.

two biggest problems I face

1.) crisp/sharpness.....barely ever... only in macro mode and AV setting


2.) light... the flash (which I hate) blows everything out with too much light... or if I turn if off.....seems to take VERY dark pictures....

I know the G5 isnt the MARK II or anything...but a buddy of mine has a point and shoot S43 and it takes the most remarkable, sharpest pictures ever.

(I thought they had same or similar sensors)... anyways...


sometimes I get the "itch" to play with my camera...but knowledge hinders me...

I dont even know how to take those LONG exposure (light runs/bleeds) type images..LOL

aversion
10-31-2005, 07:52 PM
Almost every shot on my photoblog from last year was taken with a G5, I still have it and use it. I'm not sure what you could be doing I can only suggest going back to the basics and starting again, making sure you're taking everything into account. Also might be worth getting your camera looked at if it's always soft and dark.

Shots like this one, http://mute.rigent.com/index.php?ladat=2004-10-09 required little post processing.

robbmcaulay
11-02-2005, 07:47 PM
I use a G5 for my photoblog (http://www.robbmc.com/) and it's not the fastest of cameras and tends to be pretty grainy when you up the ISO (400 is the fastest :rolleyes: )

All I can suggest is getting outside where the good lighting is and shooting some landscapes to help you like your camera again and just get used to finding good light and carrying a tripod :)

whispers
11-02-2005, 08:36 PM
how often does everyone use a tri-pod?..ever shoot?...

I find having to actually "push" the button "bumps" my shot often.....

and SLOW is a good descriptive word for the G5... :(

WannaBe_80z
11-02-2005, 08:55 PM
If you are concerned about shake and grain bring around a mini tripod(or fullsize) with you everywhere and if you wanna be really anal about shake use a tripod AND the timer so any shake you may have casued will go away within the 10 seconds

EVPohovich
11-02-2005, 09:08 PM
I drag my tripod everywhere. I don't always use it, and there have been times that I wished I had. Like when I used my car as a tripod. (http://flashkit.com/board/showpost.php?p=3396760&postcount=13)

Most cameras have two timer modes, 10 and 2 seconds (approx.). The two second option is good for times like this, and to use while leaning against a solid object like a post or railing. Think like a sniper (you are shooting something, after all) and control your breathing. I take a breath and release it all the way out, relax and THEN take my shots. It is a good technique to practice.

whispers
11-02-2005, 09:12 PM
an evil evil thing this "photography" LOL.. geez there are so many little things to it..

thanks for the feedback gang..

robbmcaulay
11-03-2005, 06:32 AM
Whispers, your G5 should have come with a remote control, use this to release the shutter, less shake!

Or if you've lost it, the timer is a good idea ;)

aversion
11-03-2005, 07:50 AM
I hardly ever take my tripod anywhere, only for night shots really. If you're shooting during daylight hours and not doing anything specialist then you should be able to hand hold at almost any aperture. Having said that I do take my remote release switch with me everywhere and a small bean bag which I can rest the camera on.

el-Ignoramus
12-15-2005, 06:56 AM
I move around mostly with my car, so I have two tripods there all the time, also I managed to make the Bottle Cap tripod thingie, and I keep this one always with my camera, that case wherever I am, you can always find a water bottle or a soda bottle to use for a make-shift tripod.

Whispers, sorry to bring that from an old time, but did you know that you can actually manipulate how strong your flash fires in a G5, also it helps a lot to set your WB I neglect almost all the Auto settings as I need each shot to look like I have it in mind

if you need tips with the G5 I'd love to help, although Aversion here is the Mecca of all G5 owners, he helped me decide which one to buy actually :)

Thanks again Av