photography and eye glasses

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Buy_Sell - 12 Dec 2005 04:29 GMT

The other day, I had to read something and I didn't have my reading
glasses with me.

I thought about what I had learned in photography regarding a small
aperture making everything appear more focused throughout a greater
range. i.e. depth of field

I decided to try making a small aperture with my hands in front of my
eyes and was quite pleased to see that everything was in focus. It
works surprising well. Try it...

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Paul Furman - 12 Dec 2005 06:37 GMT

> The other day, I had to read something and I didn't have my reading
> glasses with me.
[quoted text clipped - 6 lines]
> eyes and was quite pleased to see that everything was in focus. It
> works surprising well. Try it...

Yes, it works even if no need for glasses, go closer to the computer
screen than you can focus then make an aperture (peep-hole) with your
hand and it's in perfect focus!

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Mike O'Sullivan - 12 Dec 2005 08:20 GMT

Before the days of optical lenses, short-sighted people would commonly
carry round a small disc which had a pinhole in the centre to aid with
reading.

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Bob Walsh - 12 Dec 2005 08:44 GMT

Buy-Sell,

You can use the barrel of a ballpoint pen in a pinch as well.

Bob

>> The other day, I had to read something and I didn't have my reading
>> glasses with me.
[quoted text clipped - 10 lines]
> carry round a small disc which had a pinhole in the centre to aid with
> reading.

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DD - 12 Dec 2005 13:04 GMT

> > The other day, I had to read something and I didn't have my reading
> > glasses with me.
[quoted text clipped - 10 lines]
> carry round a small disc which had a pinhole in the centre to aid with
> reading.

I'm hoping you aren't from the pre-optical lens era. ;-)

Short sightedness is the inability to see things at a distance, isn't
it? Near-sightedness is the opposite, meaning you can see far but not
near.

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DD
www.dallasdahms.com
Central Scrutinizer

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Skip M - 12 Dec 2005 17:06 GMT

>> > The other day, I had to read something and I didn't have my reading
>> > glasses with me.
[quoted text clipped - 16 lines]
> it? Near-sightedness is the opposite, meaning you can see far but not
> near.

I thought short sighted was a lack of planning...
Near sighted is an inability to see in the distance, far sighted is the
opposite of both that and short sighted, meaning in can reflect planning
into the future.

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Skip Middleton
http://www.shadowcatcherimagery.com

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Sionnach - 12 Dec 2005 18:23 GMT

>> Near-sightedness is the opposite, meaning you can see far but not
> > near.

Sorry, but no, you've got that backwards. In terms of people who need to
wear glasses, being near-sighted means that one can only see things that are
near to you clearly. Being far-sighted means you can see distant objects
clearly, but have trouble focusing on objects close to you.
I've been near-sighted all my life (started wearing glasses in elementary
school), and those are the definitions used by every eye doctor and
glasses-wearing person I've ever met.

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Buy_Sell - 13 Dec 2005 08:22 GMT

" I once thought that I was wrong but I was mistaken..."

Sionnach

>> Near-sightedness is the opposite, meaning you can see far but not near.

Sorry, but no, you've got that backwards. In terms of people who need
to wear glasses, being near-sighted means that one can only see things
that are near to you clearly. Being far-sighted means you can see
distant objects clearly, but have trouble focusing on objects close to
you. I've been near-sighted all my life (started wearing glasses in
elementary school), and those are the definitions used by every eye
doctor and glasses-wearing person I've ever met.

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Xeke - 13 Dec 2005 14:03 GMT

I'm near sighted too and have been wearing glasses ever since I finally
came out of my denial that I actually needed them which was only 3 years
ago; the symptoms began when I was in 8th grade though-now I'm in
college. I can see things up close but in the distance I can forget it;
it's all just a mush of colors. What I find such a problem is when I do
photography of wildlife, is that I can see with my glasses on what I
want to take the photo of. But I have to take my glasses off to use the
camera because the eyepiece bounces against my glasses and I can't get
my eye close enough to the camera so I can see. The problem I run into
is that once I take my glasses off, I lose where my subject was and I
have to find it with the camera. By the time I am finished fumbling with
all that, I can only hope my subject is still there which is a big
problem when it comes to photographing birds.

I am getting a new 300mm zoom lens this weekend so I can only hope that
with that lens I can zoom in tighter to my subject so I don't have to
get so close.

> " I once thought that I was wrong but I was mistaken..."
>
[quoted text clipped - 9 lines]
> elementary school), and those are the definitions used by every eye
> doctor and glasses-wearing person I've ever met.

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DD - 14 Dec 2005 06:40 GMT

> I'm near sighted too and have been wearing glasses ever since I finally
> came out of my denial that I actually needed them which was only 3 years
[quoted text clipped - 9 lines]
> all that, I can only hope my subject is still there which is a big
> problem when it comes to photographing birds.

The best thing I ever did was get contact lenses. I am -1 in both eyes
and I likewise also refused to wear glasses unless I was driving or
watching television. I was at a night rugby match one year and inbetween
moving my glasses off my head to see through the binoculars, I decided
on the spot to have a trial of the lenses.

I use the Bausch & Lomb Clearvision lenses which are simply amazing! I
sleep in them and only take them out to clean them maybe once every two
weeks. Sometimes I forget about them completely and I think I once had
the same pair in for about 6 weeks without any irritation at all.

Prior to using the Clearvision I had been using the other 1-month
disposable jobs but you can't sleep in them and taking them out to clean
every night was a real pain in the a.s.

Signature

DD
www.dallasdahms.com
Central Scrutinizer

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Sionnach - 14 Dec 2005 21:09 GMT

> I'm near sighted too and have been wearing glasses ever since I finally
> came out of my denial that I actually needed them which was only 3 years
> ago; the symptoms began when I was in 8th grade though-now I'm in
> college.

You've got a relatively mild case, then. I *needed* glasses when I was 5
or 6; I finally got them when I was 11. Since about age 25, when the
progression mostly stabilized, I can see clearly approximately 12 inches
with my right eye, about 6 with my left.
However, my corrected vision is just fine, and I've never had any problem
taking photographs with glasses on.

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Doug Payne - 12 Dec 2005 17:22 GMT

> Short sightedness is the inability to see things at a distance, isn't
> it? Near-sightedness is the opposite, meaning you can see far but not
> near.

Nope, near-sightedness, aka myopia, means you can see near but not far.
Presbyopia is the inability to see close up, as in reading.
Far-sightedness, aka hyperopia, has symptoms similar to presbyopia, but
the optics are different. In hyperopia the light focuses behind the
retina instead of on it, and your vision could be blurred at all
distances. Presbyopia typically occurs in middle-age and is usually
thought to be caused by increasing loss of flexibility in the lens.
Myopia is caused by an out-of-round eyeball causing light to focus in
front of the retina. And then there's astigmatism....

Hmm, some of these attributes could also be attached to some posters
here :-)

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cjcampbell - 13 Dec 2005 05:03 GMT

A lot of people do the same thing by squinting. It eventually gives you
a headache, though.

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Sheldon - 14 Dec 2005 03:08 GMT

Just squint like the rest of us. :-)

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