polariser
Posted 29/09/2011 - 20:59
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No,
Also, Polarisers come in two forms, Linear and circular; this refers to the type of Polarisation not the shape of filter.
Most AF cameras cannot use Linear Polarisers due to the effect the polarisation has on the AF detector, this does not apply to Pentax AF systems
Linear polarisers are much cheaper than circular polarisers, if you can find one.
The only issue you may have is seeing the effect in the viewfinder, much more obvious using live view.
Davex.
Also, Polarisers come in two forms, Linear and circular; this refers to the type of Polarisation not the shape of filter.
Most AF cameras cannot use Linear Polarisers due to the effect the polarisation has on the AF detector, this does not apply to Pentax AF systems
Linear polarisers are much cheaper than circular polarisers, if you can find one.
The only issue you may have is seeing the effect in the viewfinder, much more obvious using live view.
Davex.
Posted 03/10/2011 - 20:27
Link
Whenever possible I prefer to use linear polarizers for their more pronounced effect.
A linear polarizer will cause erroneous readings on a Pentax LX in manual mode.
Chris
A linear polarizer will cause erroneous readings on a Pentax LX in manual mode.
Chris
Bring back the latent image!
Posted 03/10/2011 - 22:43
Link
When I shot a lot more film than I do now I used a linear polarizer on my lens.
By turning the filter whilst looking through the viewfinder you could see the effect.
I don't think circular ones show this, which could make them awkward to use.
By turning the filter whilst looking through the viewfinder you could see the effect.
I don't think circular ones show this, which could make them awkward to use.
Cheers, HG
K110+DA40, K200+DA35, K3 and a bag of lenses, bodies and other bits.
Mustn't forget the Zenits, or folders, or...
PPG entries.
K110+DA40, K200+DA35, K3 and a bag of lenses, bodies and other bits.
Mustn't forget the Zenits, or folders, or...
PPG entries.
Posted 03/10/2011 - 23:24
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The circular ones do allow you to see the effect when rotated. However, beware using a circular one on the DA 55-300 lens as it upsets the optical configuration of this lens and causes shots to be very out of focus.
Regards
David
Regards
David
Posted 04/10/2011 - 01:06
Link
davex wrote:
Most AF cameras cannot use Linear Polarisers due to the effect the polarisation has on the AF detector, this does not apply to Pentax AF systems
Okay, this is contrary to what I read almost everywhere on the web. Are you saying my GX-10 can use a Linear Polarizer?
Most AF cameras cannot use Linear Polarisers due to the effect the polarisation has on the AF detector, this does not apply to Pentax AF systems
Posted 04/10/2011 - 07:35
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ChrisPlatt wrote:
Whenever possible I prefer to use linear polarizers for their more pronounced effect.
A linear polarizer will cause erroneous readings on a Pentax LX in manual mode.
Chris
Well done! I thought I was the only person around here who knew that Whenever possible I prefer to use linear polarizers for their more pronounced effect.
A linear polarizer will cause erroneous readings on a Pentax LX in manual mode.
Chris
Linear PLs work perfectly well on Pentax cameras.
Ken
“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -
“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -
Posted 04/10/2011 - 08:21
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I never believed the 'linear polarizers don't work on digital' line, and have been using them all along with no problems. Even if they did cause AF and metering issues, it wouldn't matter for what I use them for, as there's plenty of time for manual adjustments in landscape photography.
Posted 04/10/2011 - 13:04
Link
gartmore wrote:
Linear PLs work perfectly well on Pentax cameras.
I'm curious as to what the problem with the LX in manual mode is? Largely because I am a LX user that often uses a polariser, although I think all mine are circular. I often wondered if circular ones were less effective as I remember how much difference the linear one made with my ME Super back in the day.ChrisPlatt wrote:
Whenever possible I prefer to use linear polarizers for their more pronounced effect.
A linear polarizer will cause erroneous readings on a Pentax LX in manual mode.
Chris
Well done! I thought I was the only person around here who knew that Whenever possible I prefer to use linear polarizers for their more pronounced effect.
A linear polarizer will cause erroneous readings on a Pentax LX in manual mode.
Chris
Linear PLs work perfectly well on Pentax cameras.
Thanks, Kris.
Kris Lockyear
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.
Posted 04/10/2011 - 13:18
Link
Kris, somewhere I have the Pentax CPL instruction leaflet which explains the problem, I'll have a hunt for it.
Ken
“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -
“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -
Posted 04/10/2011 - 14:28
Link
Thanks Ken.
Kris.
Kris.
Kris Lockyear
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.
Posted 04/10/2011 - 19:23
Link
thanks for the help
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