Filter reflection at DVinfo.net

Go Back   DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony HDV and DV Camera Systems > Sony VX2100 / PD170 / PDX10 Companion

Sony VX2100 / PD170 / PDX10 Companion
Topics also include Sony's TRV950, VX2000, PD150 & DSR250 family.


Reply
 
Thread Tools Search this Thread
Old May 20th, 2003, 01:44 PM   #1
Regular Crew
 
Join Date: Mar 2003
Location: New Port Richey, Fl
Posts: 142
Filter reflection

When I use my uv filter on my telephoto of wide angle lens I get a slight halo effect. When I looked at it closely, it seems the inside of the wa or tele lens is being reflected in the uv filter. This does not happen when I use the uv filter on the built in lens.

I am useing Tiffen uv filters and "digital" wa/tele lenses. As these are "cheapies" I'm not reallly all that worried about it. I manely use the uv filter to protect a valuable lens. I was just wondering if there was something I can do to correct the problem.
__________________
Why ask me? I thought you were in charge!
Joe Gioielli is offline   Reply With Quote
Old May 20th, 2003, 02:40 PM   #2
Outer Circle
 
Join Date: May 2002
Location: Hope, BC
Posts: 7,527
It's not a good idea to but on a filter with any wide angle adaptor; there's usually a problem. However, sometimes you need to protect it from the elements.
Frank Granovski is offline   Reply With Quote
Old May 20th, 2003, 03:05 PM   #3
Major Player
 
Join Date: May 2003
Location: Switzerland
Posts: 358
Frank,

Presumably this is different for an actual WA lens (such as the Canon 3x for XL1)? Is it just adapters for which filters might be an issue?
__________________
_________________
Time flies like an arrow
Fruit flies like a banana
Nigel Moore is offline   Reply With Quote
Old May 20th, 2003, 03:11 PM   #4
Trustee
 
Join Date: May 2002
Location: Barrie, Ontario, Canada
Posts: 1,922
Hoya make a thin UV with a (6 coatings) multicoating on both the inside and outside surface.

http://www.2filter.com/hoya/hoyauvsky01.html

Other than that a deeeeeeeeeeep matt box or lens hood with a wholloping great french flag ( the size of an elephants ear )
Bryan Beasleigh is offline   Reply With Quote
Old May 20th, 2003, 03:27 PM   #5
High School Student
 
Join Date: Apr 2003
Location: Canton, Ohio, USA
Posts: 609
Yeah, this is common. I have a Tiffen UV protector on just my standard camera lens, and when the sun or lights are to the side or top, it also reflects the lens. I usually quickly remove it, if I need to get a shot and I get this flare....
Alex Knappenberger is offline   Reply With Quote
Old May 20th, 2003, 04:32 PM   #6
Trustee
 
Join Date: May 2002
Location: Barrie, Ontario, Canada
Posts: 1,922
Try this link for a clamp on hood with the flag

http://www.cavision.com/french_flag_for_3x3.htm
Bryan Beasleigh is offline   Reply With Quote
Old May 20th, 2003, 05:25 PM   #7
Outer Circle
 
Join Date: May 2002
Location: Hope, BC
Posts: 7,527
"Is it just adapters for which filters might be an issue?"

Yes, wide angle adaptors will have problems when you screw on any filter (vignetting), but a slim line filter would most likely be better, since the filter might be seated closer to the adaptor.
Frank Granovski is offline   Reply With Quote
Old May 21st, 2003, 03:13 AM   #8
Major Player
 
Join Date: May 2003
Location: Switzerland
Posts: 358
Thanks Frank. I guess I wouldn't need a slimline filter with the 3x itself, but it would be dumb to spend so much on a lens, and then risk the optical performance by skimping a few dollars buying an ordinary UV filter for protection.

When I get the 3x, I think I'll just splash out the extra for a slim filter.
__________________
_________________
Time flies like an arrow
Fruit flies like a banana
Nigel Moore is offline   Reply With Quote
Old May 21st, 2003, 03:40 AM   #9
Outer Circle
 
Join Date: May 2002
Location: Hope, BC
Posts: 7,527
I'd try it before you buy it. I spent good money on a Heliopan UV, slim line, for my MX300. It's no big whoop. I get reflections bouncing off the lens onto it---and that's with a lens hood on it! So try the filter before you buy it.
Frank Granovski is offline   Reply With Quote
Old May 21st, 2003, 09:38 AM   #10
Trustee
 
Join Date: May 2002
Location: Barrie, Ontario, Canada
Posts: 1,922
The link I supplied is for the heaviest multicoating on the market. As the name implies they are also thin mounts and thin glass.

There are articles on the effect of multicoating on the 2filter site as well as a chart showing which manufacturers offer coating and what the mounting rings are manufactured from. Brass is considered premium.

Heliopan, B+W and Hoya are the only manufactures that offer multi coating according to the following chart.
http://www.2filter.com/faq/facts.html

Kenko and marumi offer mono coating as do heliopan, B+W and Hoya. The Multi coating isn't much more. The thin mount and glass is about a 25% premium over the standard mount multi coat.
Bryan Beasleigh is offline   Reply With Quote
Old May 21st, 2003, 11:45 AM   #11
Retired DV Info Net Almunus
 
Join Date: Dec 2001
Location: Chicago, IL
Posts: 6,943
Joe,
I think what you have to ask yourself is why you're using the filter at all. If you're not shooting in a harsh environment just take it off.
__________________
Lady X Films: A lady with a boring wardrobe...and a global mission.

Hey, you don't have enough stuff!
Buy with confidence from our sponsors. Hand-picked as the best in the business...Really!

See some of my work one frame at a time: www.KenTanaka.com
Ken Tanaka is offline   Reply With Quote
Old May 21st, 2003, 04:23 PM   #12
Wrangler
 
Join Date: May 2002
Location: Vallejo, California
Posts: 4,049
I too didn't think I needed a protective filter until this:

http://www.dvinfo.net/conf/showthrea...&threadid=8338

The hit always happens when you least expect it. In the referenced case, I had reason to expect flying flint.

But I've been at a school and had a student stick a pencil into the lens front 'just to see what would happen.' Fortunately the filter was in place because he used the eraser end of the pencil. He did indeed find out what would happen as his parents bought me a new $80 B&W filter.

For me, the filter never comes off. I'd rather shade the lens than lose it.
__________________
Mike Rehmus
Hey, I can see the carrot at the end of the tunnel!
Mike Rehmus is offline   Reply With Quote
Old May 21st, 2003, 07:26 PM   #13
Go Cycle
 
Join Date: Dec 2001
Location: Huntington, NY
Posts: 795
B+W makes an excellent coated UV protective filter that does not cause the bottom of a Coke bottle effect.
__________________
Lou Bruno
Lou Bruno is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Sony XAVC / XDCAM / NXCAM / AVCHD / HDV / DV Camera Systems > Sony HDV and DV Camera Systems > Sony VX2100 / PD170 / PDX10 Companion

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 02:49 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network