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| | Welcome to our newest member, Songbirdsteve | |  | | 
06-01-2007, 11:55 AM
|  | Wild Member | | Join Date: Dec 2006 Location: Worcestershire
Posts: 172
| | | Tips for Mirror lense
I have an Opteka HD/MC mirror lense which I am planning to use on my 400D. Having never used a mirrio lense before, does anyone have any tips on how to achieve the best results and what the pitfalls of mirror lense might be for wildlife photographing. Thanks in advance. |
06-01-2007, 11:58 AM
|  | Commander of the Wild Empire | | Join Date: Sep 2006 Location: Lincolnshire/Cambs/Norfolk border right on The Wash
Posts: 2,249
| | | Re: Tips for Mirror lense
What is a mirror lens?
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06-01-2007, 12:17 PM
|  | Moderator | | Join Date: Oct 2005 Location: Nottingham
Posts: 15,069
| | | Re: Tips for Mirror lense
Quote:
Originally Posted by Garden Carpet  What is a mirror lens? | A mirror lens is more like a telescope, the image is reflected from a mirror, to a smaller secondary mirror through to the camera.
The main disadvantages are that the aperture is fixed, often F8, and you also suffer from poor contrast. The worse problem though is the effect on out of focus backgrounds. It looks like doughnuts, very distracting, and your eye gets drawn to this rather than the main subject. It can produce good results in ideal conditions, i.e. when the subject is very close or when the background has no detail. |
06-01-2007, 01:25 PM
| | Commander of the Wild Empire | | Join Date: Sep 2006 Location: Lincolnshire/Cambs/Norfolk border right on The Wash
Posts: 2,249
| | | Re: Tips for Mirror lense
Thank you Graham 
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Life is not measured by the number of breaths we take, but by the moments that take our breath away. |
06-01-2007, 02:10 PM
| | Active Member | | Join Date: Mar 2006 Location: Exmouth Devon
Posts: 3,019
| | | Re: Tips for Mirror lense
I think also if you haven't got a mirror lens, that you can make one out of a heavy dutey cardboard tube. |
06-01-2007, 02:20 PM
| | Wild Member | | Join Date: Dec 2006 Location: Worcestershire
Posts: 172
| | | Re: Tips for Mirror lense
Quote:
Originally Posted by Beryl I think also if you haven't got a mirror lens, that you can make one out of a heavy dutey cardboard tube. | Hmm - let me see if I can read between the lines here! LoL |
06-01-2007, 02:29 PM
| | Active Member | | Join Date: Mar 2006 Location: Exmouth Devon
Posts: 3,019
| | | Re: Tips for Mirror lense
Quote:
Originally Posted by AlphaZeroOne Hmm - let me see if I can read between the lines here! LoL | My brother made one when in his teens and took photos of the moon with a camera and this home made reflecter. You need two mirrors and an eye piece though ( that has to be calculated mind) |
06-01-2007, 02:38 PM
| | Wild Member | | Join Date: Dec 2006 Location: Worcestershire
Posts: 172
| | | Re: Tips for Mirror lense
Quote:
Originally Posted by Beryl My brother made one when in his teens and took photos of the moon with a camera and this home made reflecter. You need two mirrors and an eye piece though ( that has to be calculated mind) | Wow! Impressed. I would think the mathatical calculations are a bit complicated and beyond me. I am not a great fan of mirror lenses but I thought, as I have been given one, that I might give it a try. But I don't hold out much hope and it's certainly not something that I would buy. But they used to be all the rage once. |
06-01-2007, 02:59 PM
|  | Officer of the Wild Empire | | Join Date: Feb 2006 Location: Staffordshire
Posts: 527
| | | Re: Tips for Mirror lense
Quote:
Originally Posted by AlphaZeroOne I have an Opteka HD/MC mirror lense which I am planning to use on my 400D. Having never used a mirrio lense before, does anyone have any tips on how to achieve the best results and what the pitfalls of mirror lense might be for wildlife photographing. Thanks in advance. | Put the camera in aperture priority mode and set it to the aperture of the lens (probably f8 - most were).
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Paul |
06-01-2007, 03:51 PM
|  | Knight Commander of the Wild Empire | | Join Date: Jun 2005 Location: N.E.SOMERSET
Posts: 9,045
| | | Re: Tips for Mirror lense
The only real problem I had with doughnuts was when
there was a lot of water in the picture lakes sea
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