Digital Photography/White Balance


Hi Vipin,

I shoot with a canon 60D. My primary lens is a 18/250 sigma. I also shoot with a Tokina 11-16.

I just bought a 62mm white balance lens cap for the sigma. Would light balance readings done on that lens still be correct when shooting with the 11-16 or would I need a seperate one because the lens may read it differently?

Additionally - would a 62 to 77 step up ring allow this white balance cap to work on both lenses, or would vinietting cause a problem for the reading?

Thank you,


White balance caps are used to set the correct white balance by putting the white balance cap on the lens and pointing it towards the light source. This allows the camera to achieve the most accurate white balance, as against the auto mode.

Using a step up ring will not affect the setting, as you are not actually shooting but taking a reading of light through the lens, which will happen just fine either way.

Please feel free to get in touch for any further queries.



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Vipin Joshi


I can answer all questions related to buying/choosing a Digital Camera, SLR Camera, Lenses etc. I will help you choose the best product with a holistic approach, keeping in mind your requirement and budget.


I own 4 Retail showrooms in NOIDA & Delhi, where we deal in Smart Phones, Digital Cameras, D-SLRs & accessories. We have been in the business for over 16 years now. I have gained my knowledge over a period of time by using and comparing the Cameras first hand and understanding the intricacies involved by testing them myself. I have been conducting personal training sessions for my DSLR customers and otherwise, at a cost. I have written an article in the newspaper on 'How to buy a Digital Camera' ( have been interviewed on a news channel (

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