any recommendations? to fit canon

round

Circular.

Circular

& flat

Is it for a autofocus or manual focus system?

Hoya do a good range of screw in filters

B+W are the bling choice 😉

Not so flat they don’t have a screw thread, though.

in case you thought ‘circular’ was being facetious, it doesn’t refer to the shape, but the type- there are two types, linear and circular- linear doesn’t work too hot on slrs – not much chance you’d get sold one though.

Not so flat they don’t have a screw thread,

flat glass
unflat unglass

this in a p-sized holder from 7dayshop.com

simonfbarnes – Member

Not so flat they don’t have a screw thread,

flat glass
unflat unglass

not strictly true though, is it Simon- old windows being a case in point

autofocus bog standard EF-S 18-55mm lens

‘linear’ polarisers don’t work well with AF systems, ‘circular’ is what you need

Yep, have a nose for a circular polariser

Think you need a 58mm thread, will tell you on the back of the lens cap 😉

I would push the boat out and get either a Lee or Cokin Z Pro holder and filter…. will cost you somewhere north of £200, but it gives more flexability going ahead (screw in filters just started pissing me off as I would want to throw in an ND Grad too)

It also means that you only need to buy 1 filter rather than replicate it for every lens!

Just watch out for the vignetting on wide angle lenses using square filter systems 😉

Don’t get it on the square filters at 17mm (full frame) using the Z Pro, so long as I reverse the holder. The polerizer does cause some vignetting at that focal length, but push it up a bit (around 18 – 19mm I think) and there is no issue at all!) That should allow you a 10mm-11mm focal length on a crop sensor 😉

oof £200 how about £15.48 😉
cheap and nasty?

hoya ultra thin if you are using an 18mm lens otherwise you’ll get vignetting.

not strictly true though, is it Simon- old windows being a case in point

the story about old windows being thicker at the bottom due to flow is apocryphal – it’s just that the glass used to be cast that way…

simonfbarnes – Member

not strictly true though, is it Simon- old windows being a case in point

the story about old windows being thicker at the bottom due to flow is apocryphal – it’s just that the glass used to be cast that way…

Thanks Simon. Tossed in the urban myth pile.

If you’re buying one – consider my recent good luck at Jessops, and perhaps with some cunning you may be able to instigate a similar experience:

– Jessop’s own 67mm cir-polarising filter is about 35% cheaper than a Hoya one; so being poor – i went in asking for one.
– They didn’t have it
– The salesman told me that they did have a Hoya one, and that it was their policy to sell the next cheapest available option to people for the same price if their own brand was not in stock
– I walk out of the shop with a £62 Hoya green series filter for £40

BTW – i run this on a Nikkor 18-135mm lens and do not suffer vignetting even at 18mm.
Good luck. A Polariser is the best thing you can add to your SLR.

circular P-series filter. You buy one filter and then adaptors for each lens you want to use it with, saves you a fortune. I have a circular poloriser and some grad filters which all fit in the same adaptors and on any of my lenses. It’s a little bit of a faff fitting them but it’s well worth the saving.

Wot Samuri said (I have the same)

I’ve got the P-series filter system and to be honest, find it such an arse that for most photo stuff I can’t be bothered with it. I do get the ND grads out though sometimes.

For polarising duties, I’ve got a Hoya, which does the job.

” mrmichaelwright – Member

hoya ultra thin if you are using an 18mm lens otherwise you’ll get vignetting. ”

Is that 18mm on a FF sensor?

I use a Hoya green circ polariser on a Canon 17-85 on a crop sensor and get no vignetting at 17mm, but if there is a UV filter between the polariser and the lens then a little vignetting is noticable. Just have to remember to take the UV filetr off.

– The salesman told me that they did have a Hoya one, and that it was their policy to sell the next cheapest available option to people for the same price if their own brand was not in stock
– I walk out of the shop with a £62 Hoya green series filter for £40

You mean like this one? (£16 on eBay):

http://cgi.ebay.co.uk/Hoya-58mm-Green-Series-Circular-Polariser-CPL-Filter_W0QQitemZ140304550209QQcmdZViewItemQQptZUK_CamerasPhoto_CameraAccessories_CameraLensesFilters_JN

what difference does the ‘green’ part make? better colours of landscape as opposed to sky?

I don’t think it is actually green. Just a branding / quality-level thing.

‘green’ as in the colour of the paper card inside the packageing is the basic model. I think the Hoya ‘Pro’ is the more fancy model.

The green one I got works just fine. Unless you’re on L series lenses then I can’t see the point in really expensive filters.

try kerso on ebay, he’s quite competitive on filters and stuff like that