Question 1

Will the ExpoDisc 2.0 work with the 58mm lens on my Canon Rebel T2i?

Accepted Answer

yes, you just have to hold the expodisc in front of the Lens instead of attaching it.This is the only size currently available. I have first version which is available in many sizes, but I only bought the 77mm, which fits my 80-200 zoom, and I use it on all my lenses.

Question 2

will this work on a canon 35mm 1.4 lens?

Accepted Answer

Yes, just hold it over the front of your lens. For the person who said "don't just hold it over your lens - Why buy step down rings when you can just hold over your lens, shiny side facing out, and proceed? It's almost as easy as if it snapped on. In the moment when you want to do a custom white balance, step down rings are just another thing you have to add and they waste time you might not have if you're in a fast paced shoot.

Question 3

Will this work on a 50mm and 85mm lens for Nikon?

Accepted Answer

Yes.  The Expo Disc will work with any camera lens.  Since you have both an  85mm and 55mm lens, If you get an 85 mm Professional White Balance Filter (Neutral) Expo Disc; it will snap on to the front of the 85mm--and you can also hand hold it over the 55mm lens--without your hand blocking the front of the 55mm lens--and get gray card exposure results right in the middle of the exposure.  JB

Question 4

Will this work on a 82 mm lens?

Accepted Answer

If you want to use the same ExpoDisc with more than one lens, get an ExpoDisc that is at least as large as the largest lens you will be using. You can hold the ExpoDisc over a smaller lens, but if the ExpoDisc is smaller than the camera lens, you can not cover the entire lens with the ExpoDisc. I have used an 82mm ExpoDisc with both 82mm and 77mm lenses. However, I finally got tired of having to hold the ExpoDisc in front of 77mm lenses and I got an additional 77mm ExpoDisc.

ASIN	B00GUQJZCW
Brand	ExpoDisc
Built-In Media	Calibration Certification Card, ExpoDisc 77mm, Neck Lanyard, Quick Start Guide, Storage Pouch
Coating Description	No Coating
Color	black
Compatible Devices	Cameras with 77mm lens thread
Customer Reviews	4.6 4.6 out of 5 stars (1,581)
Exposure Control Type	Manual
Global Trade Identification Number	00751751000169
Item Dimensions L x W	3.25"L x 3.25"W
Item Weight	1.6 ounces
Manufacturer	ExpoImaging, Inc
Manufacturer Part Number	EXPOD2-77
Media Type	ProductImage, EnhancedContent
Model Name	ExpoDisc 2.0
Model Number	EXPOD2-77
Model Series	ExpoDisc 2.0
Number of Items	1
Photo Filter Size	7.7 centimeters
Set Name	ExpoDisc
Special Effect	Color Correcting
Thread Size	7.7 centimeters
UPC	751751000169
Video Capture Resolution	1080p or 4K
Warranty Description	ExpoImaging, Inc. (‘ExpoImaging’) warrants to the original retail purchaser that the products covered by this limited warranty statement conform to the manufacturer’s specifications and will be free from defects in workmanship and materials for a period of one (1) year from the date of original purchase. For warranty service, you will need to provide proof of the date of original purchase.
Water Resistance Level	Not Water Resistant

ExpoDisc Professional White Balance Filter - 77mm lens thread - Get Beautiful Color in Your Photos and Video, Easy-to-Use, No Software Required, Save Time Fixing Color

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