Being short sighted does it matter??

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Hi, I recently found out I am ever so slightly short sighted. Does this matter? when I am focusing my 1000D is the focus going to be off because of my short sightedness? should I wear Glasses or what should I do?

Thanks,
 
andrewc said:
Using autofocus will help and you can correct the dioptre eyepiece if required
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+1

I'm shortsighted as well and first thing I usually find is the AF points in the viewfinder are out of focus if I'm using my girlfriend's camera. So first thing I do is adjust the dioptre until the points are sharp and then shoot away :D

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I am both long & short sighted - go figure :lol:

Learn to use & trust your camera - you'll be fine

Oh and if you think this is tricky, a fab landscape tog pal of mine is very colour blind - God knows how he produces the perfectly coloured images he does so well :shrug:

DD
 
The camera will focus sharply whether the image in the viewfinder appears sharp to you or not - assuming there was sufficient detail in the AF area to obtain focus obviously.

Assuming your camera has diopter adjustment in the viewfinder, you can adust it for your own eyesight unless your eyes are well outside of normal adjustment parameters - ususally about +/- 3 diopters. even then you can usually get supplementary lenses which fit into your viewfinder eyepiece.

You can adjust the viewfinder to be sharp either with or without specs, but not both. The easiest way is to adjust the diopter setting until the exposure info below the viewfinder is sharp.

So the short answer is it doesn't really matter, and it's certainly no bar to you pursuing an interest in photography. :)
 
Lets say the dioptre is out of focus for your eye, but you manual focus so that it is in focus will it therefore be an out of focus image on the sensor/camera?
 
CT said:
The camera will focus sharply whether the image in the viewfinder appears sharp to you or not - assuming there was sufficient detail in the AF area to obtain focus obviously.

Assuming your camera has diopter adjustment in the viewfinder, you can adust it for your own eyesight unless your eyes are well outside of normal adjustment parameters - ususally about +/- 3 diopters. even then you can usually get supplementary lenses which fit into your viewfinder eyepiece.

You can adjust the viewfinder to be sharp either with or without specs, but not both. The easiest way is to adjust the diopter setting until the exposure info below the viewfinder is sharp.

So the short answer is it doesn't really matter, and it's certainly no bar to you pursuing an interest in photography. :)
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Boring - (yawn smiley???)

But true of course - apart from the repeated spelling of 'dioptre' :lol:

DD
 
DiddyDave said:
Boring - (yawn smiley???)

But true of course - apart from the repeated spelling of 'dioptre' :lol:

DD
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Boring if you know the answer I suppose, but hopefully it does answer the OP's question.;)

I'll put me hands up to the the spellink! :D
 
Liam said:
Lets say the dioptre is out of focus for your eye, but you manual focus so that it is in focus will it therefore be an out of focus image on the sensor/camera?
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LOL There's always one! :D

I think the answer to that one Liam is that if the viewfinder is out of focus for your eye, there's no way you'll get an image in the viewfinder which appears sharp to you, although it might actually be sharp -if that makes sense?

If it's in focus on the focusing screen it will be sharp on the sensor.
 
BrownWarrior said:
Thanks, I have my Diopre as sharp as I can get it (all the way to the minus). The other Day I took a couple of photos with my EFS 18-55 IS lens as 18mm and focusing in the distance (probably around 100 - 120m away) but the Image seems to be quite out of focus or even maybe focused slightly on the near side I can't quite tell. So I'm wondering what might be the cause of this.
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It's hard to read much into that unless you're focusing on something all in one plane like a brick wall, when those sort of differences would obviously be significant.

Seriously -if in doubt go see your optician and take your camera - he'll certainly be able to recommend the right supplementary eyepiece lens should you need one.
 
the 18-55 IS, i find, whilst pretty good at closer work, is really weak at focusing beyond it's set 'infinity'. My GF has this lens and it pains me seeing her use it for her landscapy stuff. It could well be the lens, in fact probably is, but without seeing actual images posted up from your lens, it's just a stab in the dark.

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BrownWarrior said:
No its okay I don't think its worth going to an optician about. I'm now thinking I've probably ruled out short sightedness as to what is causing the bad focusing in this image. But I was trying to focus on a specific object a wall/pillar supporting an overpass of the M25. So why Is it out of focus, I tried to be as accurate as possible when focusing the image because I was aware of this happening in previous photos. So have I just got really lousy focusing or is there another issue? I'll try and upload the photo if I can work out how to create a gallery on here.
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Well the pic will help if you can post it, but there are so many possibilities totally unconnected with your eyesiight.

Focusing technique seems to be a common problem. You have to have enough detail/contrast in that tiny AF area for the system to lock onto or it simply can't function. If you chose a particularly plain area on that motorway support that could be your problem. Choosing to AF on a joint or some bit of fine detail can make all the difference.
 
BrownWarrior said:
I thought the point of lenses going off to infinity was that once focusing at a certain distance everything starts to get sharp. And getting sharp images of a distant object should be easy?
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Well that assumes that you obtained focus in the first place. Counting from left to right in your pic - which pillar did you focus on 1,2,3 or 4?

Which or how many AF points were you using?
 
DiddyDave said:
I am both long & short sighted - go figure :lol:

Learn to use & trust your camera - you'll be fine

Oh and if you think this is tricky, a fab landscape tog pal of mine is very colour blind - God knows how he produces the perfectly coloured images he does so well :shrug:

DD
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I'm blind as a bat and colour blind. Doesn't seem to affect me I'd be crap whatever :lol:

Andy
 
This is your image sharpened and with a bit of contrast added. I don't actually think it looks too bad. What does look a bit suspect is that the grass on the right at mid distance isn't as sharp as the grass on the left at the same distance.

3821857310_7aa5443dda_o.jpg


This is the 18-55 kit lens though which isn't the best of performers, so it could be simply down to that, although in fairness this would be a pretty bad result even for the kit lens. How long have you had it?
 
BrownWarrior said:
Thanks for you advice CT, I would like to get some better lenses but I'll probably wait until the pound strengthens.
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Well it does seem to be down to the lens more than your mince pies, so I think you can stop worrying on that score at least. Try complaining bitterly if you haven't had the lens long - that's really not acceptable at all, even in a 'kit' lens.
 
If you are focusing manually, try setting the focus half way between the points at which it seems equally out of of focus either side of the best in focus point you can achieve. Easier to do than explain.

A defect in your sight will not affect the focus as this is formed on the ground glass screen. It's just your ability to focus on this screen which is not quite correct.


Steve.
 
is the eyepiece able to be calibrated to your sight
 
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