Perfect White Balance?

andy153 · #1 13-01-09, 10:05

Hi there folks - what do you think of this gadget? Has anyone heard of it before?

http://photojojo.com/store/awesomene...ns-cap?src=DPS

**Saphire** · #2 13-01-09, 10:17

Brilliant idea Andy thanks for the link, shame its so expensive though otherwise I would get one straight away its a great idea. I would think the high cost is more than likely is in the lens cap itself as they are not cheap to replace.

You have spoilt me now I can see I will be playing with bits of plastic to try to come up with something similar

.

Joe · #3 13-01-09, 10:32

Stop it!....Behave yourself christine, and leave the tupperware alone!

You know full well Jacky and I are ebay surfers......So naturally, our far eastern friends have a cheaper alternative;

http://cgi.ebay.co.uk/67mm-White-Bal...1%7C240%3A1318

We've bought small items before from this seller. Factoring in about 2 weeks for delivery, but prices are good (available in all sorts of sizes)

Not sure if they still do them, but a few years ago a company called Omni (same folks who do the flash diffusers) were selling them here in the UK. Not sure if this helps, if people don't want to buy from abroad?

**Saphire** · #4 13-01-09, 10:35

Ten minutes later and I have cut the bottom of a white milk bottle and placed it over the front of the lens, took a photo and made it into a custom white balance. It works.

andy153 · #5 13-01-09, 11:01

Interesting Joe and Christine - but look at the difference of white area in both devices, Does anyone know if you need a large white area or will a small one do as in the lens cap?

Joe · #6 13-01-09, 11:10

Yes, I take your point Andy.
Looking through some more, the common consensous seems to be they recommend setting the white balance in 'tele-mode'.....I can see they maybe might have more use for WB readings for tele lenses, where the WB sensor on the prism might not be as accurate?
Your find has a more substantial invercone design, like the ones used on flash/light meters.

Will there be a whole host of WPF members now drilling out a hole in their lens caps for the tupperware to be stuck over?.......on your marks....... get set....... lol

**Saphire** · #7 13-01-09, 13:21

I think if you use a lens cap with a small hole then it would have to be domed for maximum light. The flat one will work just as good because it covers the whole front lens element.

nldunne · #8 13-01-09, 15:05

I would be tempted to save the money and make one at home - like Christine. Just make sure a few tests are done get the proper setting. All that has to be done is - to make sure the white is as pure a white as possible - like bond paper white.

miketoll · #9 13-01-09, 19:29

Alternatively shoot in RAW and correct as necessary?

Canis Vulpes · #10 13-01-09, 19:47

I think Expodisc were one of the first to supply a white balance aid.

http://www.expodisc.com/

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