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Re: Digital Photos (was Re: Mystery Epiplatys -- probably not)
>
>Dale Deck wrote:
>>
>> >> BTW, where can I see a pic of A. lineatus?
>> I have one at http://www.netins.net/showcase/killies/Lineatus.gif
>>
>> A digital does not work well for takeing pictures of killies.
>> You need a macro lens.
>
>Neither have been true for me, and a lot of other great photographers around
>her
A picture of a small fish taken without a macro lens will give you about
1/6 to 1/8 th of the of the picture that will contain the fish. Most
high quality non macro lens give a ratio of 1:8 which means that if
your developed picture is 4X6 the 1 inch fish will be 3/4 of an inch
long. If you have to search a picture to find your subject I cant call
that a quality picture. With a macro lens a 1:1 ratio would give you
a picture of the fish with very good detail that would almost fill
the picture. Pictures can be cropped and enlarged more but unless very
fine grain film is used the quality will suffer.
On digital cameras it is necessary to spend a lot of money to get the
quality needed for that kind of work. I am talking several thousand of
dollars. Some that zoom to about 100 mm will give a reasonable size
but the quality is mediocre, they are not sharp and lack good depth of
field. Closeup filters do work but take more light and a lower f stop
must be used and the depth of field is greatly reduced. I like my
Sonny but it is hard to beat a film camera with quality lens.
Yes GIF is a poor way to display a picture. That one has been there a
long time and was the only way to display pictures on the web at the
time. I changed most of them to JPG but missed that one. I donšt think GIF
is used at all anymore in fact my current graphic program does not even
support it. There are several other sites that have the same picture
that they asked permission to use. I donšt know if they changed the
format.
If there are any pictures of killies on the web taken with a non macro
digital camera I would like to have the URL.
Dale Deck
WD0FNU
http://www.netins.net/showcase/killies
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