Need protective filter?

Tom Hardwick · December 6th, 2009, 05:06 AM

My mentor in the 70s also advised fitting a multi-coated UV and leaving it there, but he was dealing with huge gates, 2¼ square and 36 x 24 mm. 17 mm was considered a very wide-angle indeed.

Now I'm shooting at a focal length of 2.75 mm, something he would never have considered in his wildest dreams. Knowing the massive dof bestowed at such focal lengths would (I'm sure) have him changing his recommendation.

tom.

Mark Savage · December 6th, 2009, 11:40 AM

Generally, I keep a UV on all the time -- and because I'm using the T1 IR frequently, that's becoming a default "protector", too.

It's not just black suits at weddings that require the T1-R, it's everything that is black. Whether shooting drama or docos day or night, black is present virtually all the time -- necessitating, for me, the use of the filter just as often as black occurs.

I did shoot with an Ike-E for several years, and I don't remember using a "protector" filter. I didn't trash the lens, but I came close a few times.

If I didn't have the black issue with the EX1, I would go bareback in interiors where there is great contrast and I need the stops (the IR steals 3/4 stop).

Ideally, one piece of glass is best, but shooting conditions are rarely ideal.

Geoff Addis · December 6th, 2009, 02:34 PM

Regarding optical performance, I have to agree with Tom as I have witnessed increased flare under certain conditions when using a filter in front of the EX1's lens. However, that said, I normally have an anti infra red filter fitted for both safety and optical reasons and exercise care in positioning my camera.

Geoff

December 6th, 2009, 11:40 AM	#17
Mark Savage Regular Crew Join Date: Jun 2009 Location: Los Angeles, CA USA Posts: 49	Generally, I keep a UV on all the time -- and because I'm using the T1 IR frequently, that's becoming a default "protector", too. It's not just black suits at weddings that require the T1-R, it's everything that is black. Whether shooting drama or docos day or night, black is present virtually all the time -- necessitating, for me, the use of the filter just as often as black occurs. I did shoot with an Ike-E for several years, and I don't remember using a "protector" filter. I didn't trash the lens, but I came close a few times. If I didn't have the black issue with the EX1, I would go bareback in interiors where there is great contrast and I need the stops (the IR steals 3/4 stop). Ideally, one piece of glass is best, but shooting conditions are rarely ideal. Last edited by Mark Savage; December 6th, 2009 at 06:30 PM.

December 6th, 2009, 05:06 AM	#16
Tom Hardwick Inner Circle Join Date: Mar 2003 Location: Billericay, England UK Posts: 4,711	My mentor in the 70s also advised fitting a multi-coated UV and leaving it there, but he was dealing with huge gates, 2¼ square and 36 x 24 mm. 17 mm was considered a very wide-angle indeed. Now I'm shooting at a focal length of 2.75 mm, something he would never have considered in his wildest dreams. Knowing the massive dof bestowed at such focal lengths would (I'm sure) have him changing his recommendation. tom.

December 6th, 2009, 02:34 PM	#18
Geoff Addis Regular Crew Join Date: Jan 2008 Location: Reading, UK Posts: 116	Regarding optical performance, I have to agree with Tom as I have witnessed increased flare under certain conditions when using a filter in front of the EX1's lens. However, that said, I normally have an anti infra red filter fitted for both safety and optical reasons and exercise care in positioning my camera. Geoff