Set of two flexible check cards takes guessing out of setting perfect exposure and color balance, that can only be archived with high quality Mennon Grey Cards with the uniform spectral reflectance, regardless of wavelength, color or intensity of the illumination. The grey sideused as a reference area for exposure metering while the correct white balance that is so important in digital photography.

Specification:

• Gray side: Reflectance 17.8%; Density 0.74
• Max. deviation of reflectance: 2%
• Max. error in exposure measurements: 1/8 of F-stop
• Card sizes: 4"x6" and 6"x8"
• Core material: high density paper based composite
• Gray side material: special paper with spectrally flat 18% coating

• We accepted International order. We ship to Worldwide.
• We will ship the item to you within3 business days after clearance of payment.
• Shipment is directly from Hongkong Post via regular airmail. it usually takes 7-15 business days. Due to variation of postal service in different areas, some areas may take longer(20-60 days), such as: ITALY, Philippine, Indonesia, Malaysia, Argentina, Tailand,South Africa, even though we ship items via Airmail. we strongly suggest buyers who from these mentioned country would better to choose $2 of insurance in case of lost.
• No Tracking Number.
  You can choose registered post with tracking number provided by paying an extra$2for the postal insurance. It is highly recommend the buyer to pay insurance (send by registered mail) if the buyer want tracking number.
  We are not responsible for any loss in the mail if the item is not insured(non-registered mail).

• Weonly acceptPayPal.
• All payments are expected within 7 days after the last winning auction is closed. All unpaid auction will be forfeited.
• By bidding on our auction, we will assume that bidder had accepted our terms & conditions.

• No refunds are offered. Only defective product will be offered exchange or store credit.
• Defective products must be returned within 30 days from the date you placed your order.
• It may take up to3 business days to process your return after we receive your product.