Subject:
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Re: Camera ?'s
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Newsgroups:
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lugnet.publish
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Date:
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Tue, 24 Dec 2002 22:47:51 GMT
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Viewed:
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1155 times
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In lugnet.publish, William R. Ward writes:
> "John Henry Kruer" <jhkruer@yahoo.com> writes:
>
> > I don't know about a video camera, but for a still camera you should look for:
> >
> > Resolution (megapixels)- you can crop small stuff out of large pictures that
> > you couldn't do otherwise with smaller sizes, and get more detail
>
> Personally I leave my camera set to 640x480 most of the time, though
> it can do 1024x768 (1.3 megapixels). That's all you need if you're
> just going to post it on the web. Higher resolution (i.e. more
> megapixels) is only needed if you want to print the pictures on paper
> or show them on a monitor locally - for the web, they're too big (in
> terms of bytes).
Well, not always. What I ment is that, using high resolutions, you can, in
effect, do a 'digital zoom' on an image-editing program. For example:
http://www.brickshelf.com/gallery/tboy/Misc/monkey.jpg
I took a 2048x1536 picture, then cropped out a 640x480 section, which held a
monkey. The result was a monkey that filled the screen, and looked very big
and detailed- you can see all the nicks in the pieces.
Now, if you just pocked the camera at the monkey, trying to get it to fill
the whole screen, it would appear as a blurred blob, because the camera
won't focus that close.
The primary use of high-res images for me on the internet is to crop out
sections, making very nice close-ups.
>
> > Zoom: Might not be neccecary for macro photography, but still useful. Go
> > for optical zoom, its real zoom. Digital zoom is just adding pixels into an
> > image to make it bigger- it dosn't add any real detail.
>
> Actually digital zoom is just cropping done for you by the camera. It
> takes the picture using its highest resolution but then crops out the
> outside edge. That's why digital zoom pictures can not be made at the
> maximum size. But optical zoom adds considerably to the price, so you
> need to decide if it's important enough.
We're both right.
http://www.dpreview.com/learn/Glossary/Digital_Imaging/Digital_zoom_01.htm
Digital zoom can be cropping out the center OR interloping a section to make
it larger. That's why on my camera, you can digital zoom on highest-res
images. But you said your camera is old, so maybe that's why you'rs has a
'cropping' zoom.
>
> > Macro mode: This allows you to take close-ups of objects. Look at the
> > focusing distance on a camera, I would say anything below 4 inches makes for
> > a good macro.
>
> Most cheap cameras are fixed-focus, but have "tree" and "flower"
> settings, which affect the exposure. I can take close-ups in "tree"
> mode but the colors will be off.
Fixed-focus... ugh.
>
> > Controls: Look for how much controls you have on the camera. Automation is
> > nice, but being able to change white balance, ISO, exposure, flash, set
> > focusing, and other things as well make for good pictures.
>
> Depends on how technical you want to get. My camera has the
> tree/flower setting and several flash modes, and that's enough for my
> purposes - I get much better results with my digital than I do with my
> old manual-focus Minolta SLR's.
Well... it depends on the conditions.
My camera's auto features are fine, but sometimes it just doesn't do the
right thing. It dosn't have very many manual things (only exposure, flash,
ISO, white balance, some focal lengths, and sharpness [I wonder how that
works?]) but it can come in useful sometimes.
>
> > It's also nice if the camera can use a rechargable battery, as cameras are
> > large power hogs.
>
> I use Rayovac Rechargable NiMH batteries. The 1600 mAh AA batteries
> work great. I can use Duracells but they'll only last about two shots
> before being relegated to flashlight duty...
My camera uses 1750mAh NiMH batteries,and I have to say that I like them a
lot. Very useful things, only they take 13 hours to charge. I have 3 sets
of them around, so there's always power around.
>
> I would also add: get a camera that uses SmartMedia, CompactFlash, or
> Memory Stick chips. Don't rely on using a data cable to transfer
> images. Get a PCMCIA adapter for the memory card and you can use any
> laptop to download the images, and it's even faster than USB. Also,
> with the USB cable to the camera, you have to install software on the
> computer, which limits your ability to download pics into someone
> else's computer. And buy a big memory card to supplement the one the
> camera comes with, so you can go longer between downloads.
Mine didn't require software to use the USB. The software it came with was
pretty bad, and was way to slow and cumbersome. I just use windows
explorer. But I still use USB... my parents don't want to get anything better.
>
> Caveat: my camera is an Olympus D-360L and it's a couple of years old,
> so I'm not sure what the latest technology offers...
My camera is a Sony DSC-P71
http://www.megapixel.net/reviews/sony-p71/p71-review.html
I like it, although it tends to be a bit dark.
-JHK
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Message has 1 Reply:
 | | Re: Camera ?'s
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| (...) [...] (...) Doing film photography I learned that it's best to do your cropping when you take the picture, rather than afterward. So I try to compose all my pictures how I want them in the end, without cropping. Not that I always succeed, and (...) (22 years ago, 25-Dec-02, to lugnet.publish)
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Message is in Reply To:
| | Re: Camera ?'s
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| (...) Personally I leave my camera set to 640x480 most of the time, though it can do 1024x768 (1.3 megapixels). That's all you need if you're just going to post it on the web. Higher resolution (i.e. more megapixels) is only needed if you want to (...) (22 years ago, 24-Dec-02, to lugnet.publish)
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