Zeiss says cleaning lenses with anything other than their lens cleaner voids the warranty. I wouldn't buy a Zeiss magnifying glass on sale.
You may just want to ask Zeiss directly if they have ever asked anyone what they used to clean the lenses and then voided the warranty as a result of the answer LOL. I've sent in Zeiss scopes for warranty work and for reticle changes and have NEVER been asked that.
By the way, I just looked at one of my Zeiss manuals, and NOWHERE does it state what you claim. I'm not saying it may not be in another product's manual, but I don't recall reading that in any of mine and have used Zeiss for decades.
FROM ZEISS MANUAL:
Care and maintenance
Your riflescope has ZEISS LotuTec ® coating. The effective protective coating for the lens surfaces noticeably reduces contamination of the lenses through an especially smooth surface and the resulting water-beading effect. All types of contamination stick less and can be quickly and easily removed without smearing. LotuTec® coating is durable and abrasion-resistant.
Your ZEISS riflescope requires no special maintenance. Do not wipe coarse particles (e. g. sand) from the lenses. Blow them off, or use a soft brush! Over time, fingerprints can corrode the lens surface. Breathing on the lens and polishing with a clean optical cleansing cloth/tissue is the easiest method of cleaning the lens surface.
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I also just looked at a pre-Lotutec manual. Again, there is no mention of what you claim.
I got that straight from actual first hand experience dealing with Zeiss. You wouldn't expect it would you? That's the reason I bothered to type it.
Show where that is written
On Tuesday, December 1, 2020, 02:28:29 PM EST, Benjamin Martin <repairservice.cop.us
zeiss.com> wrote:
Good afternoon,
Thank you for your inquiry into our Conquest MC product line. The only photo that came along with your e-mail is the serial number photo. The issue you have described is not a manufacturing defect with the lens coating. Unfortunately we do not cover lenses that are damaged due to improper lens care. We do not recommend using dish soap to clean your optic.
The manual states the following in terms of lens cleaning and care:
Do not under any circumstances wipe off coarse dirt particles(e.g. sand) from the lenses, but blow them off or remove them using a soft brush. If not removed, finger marks can damage the lens surface. The proper way to clean the lens surfaces is with a quality lens spray cleaner or moist lens tissue and then wipe them with a clean optics cleaning cloth.
In the event that you would like to replace your scope we need to inform you that your scope has been discontinued and is no longer repairable due to parts and tooling availability. However, if you send your scope in to our service department we can offer you a good will sale on a NEW optic at a significantly discounted price. We will need your scope before we can make this offer.
We appreciate your continued patronage,
Your ZEISS Customer Care Team
ZEISS Consumer Products
COP Repair Service
1050 Worldwide Blvd
Hebron, KY 41048
USA
Phone: (800) 441-3005
repair.sportsoptics
zeiss.com
Web:
www.zeiss.com/us
