TeleFragger wrote in post #13302922
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spors = speed... so even at that... someone explained to me.. say my 85mm...
85mm x 1.6 = 136 so speed at least 1/136 (1/160)
so if i try my 85mm on manual...
f/2.0
speed 160-200
This calculation just gives you a shutter speed that should prevent blur from camera movement - it is not related to possible blur from subject movement. To get a sharp image of kids playing soccer you'll want a faster shutter speed - probably no less than 1/250 sec., and preferably faster than that.
TeleFragger wrote in post #13302922
iso - auto (or am i better off choosing 1600 max or 3200 max???)
Auto will probably give you what the camera thinks is the correct ISO for a medium gray scene. Personally, I'd prefer to set the ISO myself based on the shutter speed I want to use, and my preference for exposing to the right as much as possible, especially at higher ISOs, to keep noise down.
TeleFragger wrote in post #13302922
im horrible at night stuff.. I know part of it is I need to learn.. but is it also my lenses? i was told for night hockey the 85mm would be the best bang for the buck (i would love a 70-200 f/2.8 IS though... but not in the budget for another year)....
Although your zoom isn't as "fast" as your 85, you can still probably get decent shots at higher ISOs, which will compensate for the f/4-f/5.6 range of your zoom.
TeleFragger wrote in post #13302922
so if anyone has any recommendations... id appreciate it...
i started looking at the histogram when taking pics but i have no clue what im looking at... even googling it and reading other things.. i see what they mean by too dark histo is to the left.. and too bright it is to the right.. but they dont say how to counter it...
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You change the histogram by changing your exposure settings and thus changing the exposure captured by the camera. To increase exposure, either drop the shutter speed, open up the aperture, or raise the ISO, or a combination of these.
My approach for what you want to do would be to set the shutter speed I wanted to use to freeze motion (say 1/500 sec.), set maybe ISO 800 as a starting point, and set a wide-open aperture (f/1.8 on your 85), and then press the shutter button halfway and see how under-exposed the scene is. Use the meter bar in your viewfinder - the further left of center the pointer is, the more under-exposed the scene is (your meter bar has shorter and taller vertical marks - the small ones are fractions of a stop and and taller ones are full stops - count how many down from center the pointer is to see how many stops/fractions of stops).
Let's say you see that the scene is 2 stops under-exposed. You can't go to a wider aperture, so you need to adjust either shutter speed or ISO, or both, to increase the exposure (technically ISO doesn't affect the exposure, but don't worry about that now). You'd need to drop the shutter speed to 1/125 sec. to increase exposure by two stops, or increase ISO to 3200, or you could drop shutter speed to 1/250 and increase ISO to 1600 for the same change in exposure. Do one of these, press the shutter button down halfway, and see how it looks now. The exposure pointer on the meter bar in your viewfinder should be just about centered.
I assume you're probably using evaluative metering, which means the camera is assessing the darkness and brightness levels of everything in the scene when it calculates the "correct" exposure. Because of how camera metering/exposure systems work, that means the camera will be set to expose a neutral gray scene (not too dark, not too bright), which is what the exposure pointer being centered means. Depending on the scene, this might actually result in an image that is too dark or too bright. You need to learn to apply exposure compensation or adjust your settings if shooting in manual to overcome the exposure system's programming, which is designed to produce a neutral gray scene.
That's where the histogram comes in. You want the brightest thing in the scene in which you want to retain detail to be as close to the right edge of the histogram as you can get it without touching that edge.
For best results, you would shoot in RAW, not JPEG, so you could get the maximum exposure adjustment "wiggle room" in your captured images when post processing. Assuming you're shooting in JPEG, you'll have to go with what your camera does in processing the images.
For some great reading on exposure and metering, take a look at these links:
http://www.cambridgeincolour.com/tutorials/camera-exposure.htm
http://www.cambridgeincolour.com/tutorials/camera-metering.htm
http://www.cambridgeincolour.com/tutorials/histograms1.htm
http://www.cambridgeincolour.com/tutorials/histograms2.htm