Saturday, May 7, 2011

Pictures from April

The two pictures I entered into our Photo Group last month, one illustrating the effects of different apertures on the depth of field- see how the background behind the lights blurs as the aperture gets larger? (Aperture gets larger as the f/# gets smaller)

The other is a shot of a lizard with some intense blur which is straight-out-of-camera, though I messed with the colors and such in PhotoShop.


22 comments:

David R. said...

I hate to say it, but don't really see any difference on the top four shots. :( Sorry!
The Lizard shot is kinda cool though, his skin texture really comes out.

Rebekahh said...

I see the difference in the top four photographs. You did a good job and I really like the lizard shot! Only I can't decide what kind of lizard it is... :D

To the KING be all the glory!
Rebekah

Gabriel Hudelson said...

Look at the blur in the background where the wall meets the ceiling, David.

Brad Petersen said...

nice on the Lizard.

Just Ride said...

What kind of camera did you use for the top 4?? We have been messing around quite a bit w/ photography (we have a Canon Rebel T2i) and can't seem to get the background consistently blurred. Sometimes it will whenever it feels like it. We have been blurring backgrounds in Adobe Photoshop which takes lots longer than just having the camera do it....

Gabriel Hudelson said...

Rebel XTi. What setting are you using?

Gabriel Hudelson said...

*subscribing*

Just Ride said...

What setting on what? And suscribing to what??? I'm confused ☺
I put up new pics of one of our horses that we took with our Canon on my blog...you can see how the background takes away from the horse.
We called Jocelyn Klotz to ask about lenses (btw what lens are you using??) and other things but didn't get a hold of her yet. She's amazing with the camera!!!

Just Ride said...

Do you know who I am yet?

Gabriel Hudelson said...

She IS amazing with a camera...

I was just subscribing to these comments.

What setting is your camera on? Av? Tv? P? Auto?

Because to change the blur as I was, you'll note how I was changing the aperture setting- the f.number. You can do this in Av mode or in Manual mode.

For that shot I was using our 70-300 zoom lens, which does seem to give even better depth then the kit lens. Also, the shorter the focal length the deeper the bokeh- if the horse's nose is 2 inches from the camera, his eyes might be blurry. If his nose is 20 feet from the camera, then he's probably going to be all-in-focus.

This site might be a great resource for you- it's from our own Mrs. Klotz. No guarantees as to content, though I've seen nothing bad- please check with your parents first.

http://www.digital-photography-school.com/aperture-101

And yes, I know who you are, Miss D. :-)

Just Ride said...

Mainly auto or macro, depending on what I'm taking a pic of. I just put the camera on the AV mode, and took a picture, and it took like 30secs to take, and then ended up almost white with some blurry shapes in it??? I put it in the manual mode (M?) and it ended up almost solid black..help??? ☺ What good is the TV mode??

For the horse shots, we back up as far as possible and zoom in as far as possible, but as of yet, our big lens is just a 55-250mm...still hoping for a 70-300, but haven't got around to seriously looking...or seriously saving money lol.
I'll check out the website and read the camera book AGAIN more carefully ☺ and thx!

BTW, which "Miss D" am I??? ☺ ☺

Gabriel Hudelson said...

Well, judging by the URL of your picture, you're Jessie. :-D

Now, Auto isn't necessarily going to give you blur.

When you're in AV mode, what the camera does is allows you to change the aperture, and then adjusts the shutter speed to compensate- to make sure the picture is well lit.

If you use a small aperture, like F35, then the shutter will have to stay open for a long time ("it takes like 30 seconds to take") so that it gets enough light.

You need to use the scroll wheel and scroll the number to something like F5.6, both to give you better blur and to let in more light.

And shooting on a tripod doesn't hurt.

Short explanation of the modes:

Tv - lets you set the shutter speed (how long it takes to take the picture)

Av - lets you set the aperture value (how large the hole is that lets the light into the camera- this effects your depth of field)

M - lets you set both, so if you don't set 'em right, you'll wind up way over- or under-exposed.

Just Ride said...

Haha yeah

OK it's connecting in my brain.....sorta lol
But I saw that you put your Aperture on 40 I think, so I got our camera and put it on the same but it still gave too much light, but I think I understand now what to do about it...thx a bunch and if I still don't get it I'll (unluckily for you) I'll probably be back :) lol unless you don't want me to :)

Gabriel Hudelson said...

No, you're welcome to keep asking, and make sure you aren't confusing aperture (f/5.6) with shutter speed (1/800).

Just Ride said...

Ok so that's what the 1/800 is....but I just got out the camera and tried to put it on 35 And the only range I have is 4.0 to 22 hmmmmm you didn't quite get rid of me :)

Gabriel Hudelson said...

That's OK. Actually, you'd want to go the other way. I'd suggest 4.0, if you're going for blur.

Just Ride said...

Say I have my f on 5, am I going to want the other high or low (on something more like 20 or 2000?)

Gabriel Hudelson said...

Do this: set your camera to Av, then put your aperture on 5, and half-press the picture-taking-button. Now watch what shutter speed it gives you, and then go over to Manual and try it that way.

The answer to your question depends heavily on your lighting situation.

Just Ride said...

OKKKK it's giving me 30. I realized about the lighting or actually Lis told me :) are you saying to set everything on tv AND av, or does the tv automatically adjust? And, do I then take pics in the AV mode or put it on M? Thx again/.. Oh and what good is the A-dep mode?
Im trying to watch Gettysburg ( for the third time) at the same time as this... Kinda funny, but this is much more interesting lol maybe :) Lisa says she's impressed with your camera knowledge. :)
One more thing, we have some miniature horse friends who live out near your area and are seriously thinking about coming to Legacy, please pray for them!!!!! The mom is really searching for truth to all appearances....

Gabriel Hudelson said...

No, set it to Av. You then adjust the aperture settings to as low of a number as you can (like 5.0).

Then, half-press the button while looking at the display.

It should give you its suggested shutter speed. This will help you then go over to Manual mode and have a general idea of what to set your shutter speed to.

(or you can just take it in Av mode, but this one is better for learning :-)

Just Ride said...

Yay it works!! Well yeah DUH I guess it should lol thank you thank you!!!!

Gabriel Hudelson said...

My pleasure. Glad it worked out for you. :-D