Cokin Filter Assistance!

[samfirman7]

Hi guys!

I have a canon 500D with a sigma 10-20mm wide angle and a sigma 70-300mm telephoto, and am looking to invest in some cokin filters, but am extremely confused!

The filters I would like are:
1. A set of ND grad filters (preferably a set of 3?)
2. A polariser filter
3. A neutral density filter to allow longer exposures

I would definately like square filters, except perhaps for the polariser, and obviously need the filter holders/adapters/rings (so confusing) that will allow my square nd grad and nd filters to fit both lenses.

So I plea for somebody to suggest which filters will be best (3 nd grads, an nd and a polariser) and also, can i use the square filters on both lenses? If so, what adapters/holders etc will I need??

Also, a circular polariser pleas,e that will be used on the 77mm sigma 10-20mm sigma.

So 3 nd grads and and an nd filter plus all equipment to fit both lenses, and a polariser for the 10-20, which does not have to be made by cokin.

Thankyou so much, and any links would be much appreciated ... my budget is around £100 if possible.

 

[david1701]

you get round circ pols that slot into the square holders, this means it'll work on both lenses which saves buying a pair of expensive polarisers

 

[TheBigYin]

as far as the filter mounting kit, you'd need a square filter holder

a 77mm adaptor for the 10-20 edit: or a wide angle one (but that'll only hold one filter - not good if you need a nd and and grad...)

and if memory serves me correctly a 58mm adaptor for the 70-300

 

[GarynLea]

The most popular square filters are 85mm but these may cause some vignetting on the 10-20mm so i'd go for the 100mm to be safe

 

[Flash In The Pan]

as far as the filter mounting kit, you'd need a square filter holder

a 77mm adaptor for the 10-20

and if memory serves me correctly a 58mm adaptor for the 70-300

You need a wide angle mount for the 10-20, iirc the only people that make one are Cokin themselves.