General Brand 72mm White Balance Lens Cap Disk for Digital SLR Cameras

by General Brand

Product Details

• Shipping Information: View shipping rates and policies
• ASIN: B001BO7PHU
• Average Customer Review: 2.6 out of 5 stars  See all reviews (5 customer reviews)
• Date first available at Amazon.com: June 25, 2008

Product Description

Includes, holder, cap, and Cap keeper.

Customer Reviews

Most Helpful Customer Reviews

5.0 out of 5 stars So Easy!, November 10, 2011

By 

Robert - See all my reviews

Amazon Verified Purchase

This review is from: General Brand 72mm White Balance Lens Cap Disk for Digital SLR Cameras (Electronics)

This is the fast and easy to get white balance. Snap on, point and shoot. I have one for each filter size. Wish I had found them sooner.

0 of 1 people found the following review helpful:

3.0 out of 5 stars innacurate if mixing ambient/flash !, February 28, 2011

By 

JochyStarz - See all my reviews

Amazon Verified Purchase

This review is from: General Brand 72mm White Balance Lens Cap Disk for Digital SLR Cameras (Electronics)

if you use flash of nay type, fill.studio.main.key all of them ... this is not you best WB calibration option ... is very inaccurate ... only time i see a little accuracy compared to a whibal card is when working with natural light ... and even sometimes is off ... if you're willin to sacrifice a little to time to make slight temp adjusments then og ahead a buy the biggest one thay make ...that way u only buy one to fit all your lenses !

0 of 1 people found the following review helpful:

1.0 out of 5 stars Unpredictable, June 23, 2010

By 

Ramesh Gopal (Albuquerque, NM United States) - See all my reviews
(VINE VOICE)    (REAL NAME)   

Amazon Verified Purchase

This review is from: General Brand 72mm White Balance Lens Cap Disk for Digital SLR Cameras (Electronics)

I did not find this device useful. Face it, if you know enough about white balance to custom set it, then you know that a true white balance (i.e. one derived from a neutral gray card) is not the real issue. The issue is to give a specific pleasing feel to your photographs. Most often this will require a warmer white balance than would be metered. You can set it in your favorite photo software and is easiest to do (with the most consistent results) if you start by shooting RAW. What this Lens Cap Disk does is average the light falling on the camera sensor - it is after all a diffuser - to help set a custom white balance. To some extent this will compensate for non-uniform lighting conditions. However, I did not find the results more pleasing than those from my Nikon D70's auto white balance setting. They were also unpredictable.

My impression is that the much more expensive ExpoImaging ExpoDisc product line will result in warmer images. I have not had a chance to try it. If I decide to pursue the white balance filter option further, I think that is the way I will go.