Pictures, Getting the hang of it!

[Michael_Lambert]

Alright soo this is where i am now..

All images where shot with the 18-55mm Lens that came with the Digital rebel, Shot them in "AV" at a 5.6 F-stop with the Flash, And Hand Held.

I shot all the images in "Raw" and processed them in Photoshop.









Please post your comments and suggestions.. Please!

thanks
Michael

[Travis]

Looking great!

#2 is underexposed, you can re-edit the RAW file and fix that.

DOF is looking better, but with this wide range of shots you should not be locked into one aperture- you should be changing it according to the magnification. Not a criticism of the photos here, but trying to get you into good habits from the beginning... much easier than changing them later. The more you THINK about what DOF you want for a certain shot and adjust accordingly, the more you become a photographer rather than a button-pusher.

Also... try to pull back on the image size, huh? In Photoshop, do image --> resize and bring it down to 72DPI ans then use file--> save for web with a JPEG quality of 60 or so. This will save a copy of the file at a smaller size so you don't lose your full-resolution original (as long as you don't save the orig. after resizing)

[sharks]

WOW those are awesome!
I love the clown and last tang shot.
Keep at it

[Michael_Lambert]

Originally Posted by Travis

Looking great!

#2 is underexposed, you can re-edit the RAW file and fix that.

DOF is looking better, but with this wide range of shots you should not be locked into one aperture- you should be changing it according to the magnification. Not a criticism of the photos here, but trying to get you into good habits from the beginning... much easier than changing them later. The more you THINK about what DOF you want for a certain shot and adjust accordingly, the more you become a photographer rather than a button-pusher.

I agree, The only problem i have is i dont have a working Tripod.. So im doing all hand held shots..and i find that increasing the DOF the images come out Blurry, I gues because of the lenght the Shutter is open ?

[Michael_Lambert]

alright,

I pulled out my little 5 inch Tripod.. lol the freebies you get with most camera purchaese..

I took 3 shots different F-Stops to see what i could get..

So here we go..


F-5.6




f-11



F-20




And like i said earlier.. the higher the F# went the longer the shutter took..

Michael.

[Michael_Lambert]

I guess if you compare the two..

F-5.6 (halides and actinics)



and then

f- 20 ( Just actinics )



I must say that i love the f-20 shot much more! .. the only thing is i need a Tripod.. and i used the Timmer, But the dam thing is over 10 seconds.. So i think i need to buy a remote shutter for it.

Michael.

[Travis]

Yeah, that F/20 shot looks great!

You're absolutely right, for every stop you raise the f-stop, the amount of time the shutter is open will double.

That's where ISO speed comes in- for every "notch" you bump up the ISO (100-->200, 200-->400, etc) the time the shutter is open is cut in half.

And there you have it, ladies and gentlemen... exposure in a nutshell. LOL.

[Michael_Lambert]

Originally Posted by Travis

That's where ISO speed comes in- for every "notch" you bump up the ISO (100-->200, 200-->400, etc) the time the shutter is open is cut in half.

Humm..

So when i went from f5.6 to the f20, I should have bumped my ISO from 100 - around what 600/800 to keep the shutter speed around the same?

Now is it not true that by increasing the ISO you increase the Noise in the image?

[Travis]

That is true. Being familiar with the 10D that has the same sensor/processor as the DRebel, I can tell you that you should be safe going to ISO400 without losing image quality. But you have to be careful with sharpening the photo in PS then...
In full stops, the aperture is about 4 stops higher from f/5.6-->f/20.

So say you were at 1/30, it would be (1/30@f/f.6, 1/15@f/8,1/8@f/11,1/4@f/16,1/2@f/20)

So then say you went from ISO 100 to ISO 400, that's buying two stops of shutter speed:
(1/2@f/20 ISO100, 1/4@f/20 ISO200, 1/8@f/20, ISO400)

So in this case to get back to 1/30, you'd need another two stops, which would bring you to ISO 1600.
(1/15@f/20 ISO 800, 1/30@f/20 ISO1600)

T

[Cougra]

Tooloud and Travis, thanks for posting these threads! The f-stop and ISO settings are starting to make a lot more sence to me, especially when I see same basic image taken with the different f-stops posted.