Hoya R72 filter: I just puchased an Infrared filter to give this try on digital cameras. I have used different cameras, and different lens. The results of no matter what I try ends up...

snapshot4619 Loc: AZ USA

I just puchased an Infrared filter to give this try on digital cameras. I have used different cameras, and different lens. The results of no matter what I try ends up the same. Namely a lighter circle appears in the photo. Example posted. Has anyone who shots Infrared with a filter using Hoya R72 experienced this and if so what is the cause and how do we rectify it? Thanks for you help in advance.

sueyeisert Loc: New Jersey

There are certain lenses that aren't good for IR. They have hotspots. this is a partial list of good and bad lenses for IR.

http://www.kolarivision.com/lenshotspot.html

Meives Loc: FORT LAUDERDALE

[quote=snapshot4619]Could be light reflecting back. If the wall was angled would it still be there?

snapshot4619 Loc: AZ USA

No I have tried different angles and it makes no difference. I have read the website referenced by sueyeisert and it helped me understand this better. I am now testing other lens and also the point was stated that the aperture you shoot can make a difference on each lens. So I will continue to test. I am getting better result. Thanks for the advise and help.

sueyeisert Loc: New Jersey

Another source for good IR lenses is Photographylife. If you go to their lens data base ,some lenses not all are rated for IR>here is an example http://photographylife.com/lenses/nikon-af-s-dx-nikkor-18-200mm-f3-5-5-6g-ed-vr
Another good source for IR information is lifepixel.com.

snapshot4619 Loc: AZ USA

Thanks again I will check them out.

dar_clicks Loc: Utah

snapshot4619 wrote:

I just puchased an Infrared filter to give this try on digital cameras. I have used different cameras, and different lens. The results of no matter what I try ends up the same. Namely a lighter circle appears in the photo. Example posted. Has anyone who shots Infrared with a filter using Hoya R72 experienced this and if so what is the cause and how do we rectify it? Thanks for you help in advance.

As others mentioned, probably a hot spot from the lens. I've used that filter with good results, but one of my lenses seems to behave the same way. I was fortunate to be able to burn in that area of the image to not be so noticeable.

silver Loc: Santa Monica Ca.

snapshot4619 wrote:

I just puchased an Infrared filter to give this try on digital cameras. I have used different cameras, and different lens. The results of no matter what I try ends up the same. Namely a lighter circle appears in the photo. Example posted. Has anyone who shots Infrared with a filter using Hoya R72 experienced this and if so what is the cause and how do we rectify it? Thanks for you help in advance.

One way to not get the hot spot is to shoot with the lens wide open.