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Denkmeier Optical, Inc. is a company co-owned by Russ Lederman and Spectrum Thin Films in Hauppauge NY. Russ Lederman is Inventor of The Power x Switch and Power Switch Star Diagonals. Let Denkmeier Optical be your source for the finest Binoviewers, Eyepieces, and Star Diagonals available anywhere. Whether your telescope is an SCT, Newtonian Reflector, Refractor, Maksutov Cassegrain, Dobsonian, Classical Cassegrain, RCX or other RC telescope brand, we have a binocular viewer for you! See our FAQ section for answers to common questions. You may now see copies with similar sounding names of our products elsewhere, but do not be misled: Each and every Denk undergoes personal hands-on quality control procedures by Denk's owners throughout the production process in a state for the art facility here in the USA.
Click Below To See The Binoviewer Systems Recommended For Your Scope
Newtonians Refractors Schmidt Cassegrains
  
 
DenkmeierSystem for
Ha Solar With Denk Binoviewers Lunt Ha : Coming Soon!! Call For PST Ha Scopes
Those Who Own Several Designs Of Telescopes, Click Here***
" Product Price List "
HOLIDAY SPECIAL!
HOLIDAY SPECIAL HOLIDAY SPECIAL
Free Denk "Hi Def Nebula Filter" & 10% Discount!! Click To View Our $ HOLIDAY $ SPECIAL $ DEALS $ Web Page and learn about this limited time offer!!
 
Learn More About Our New Denkmeier Hi Def OIII, UHC, and Planetary Filters, Made At Our NY Facility!
"Let Two Eyes Add A New Dimension To Your Observations Of The Night Sky and You Will Never Look Back" -Russ Lederman, Denkmeier Optical, Inc.
New Link: VERY IMPORTANT INFORMATION ON IDENTIFYING "PREMIUM" COATINGS"
A Note To Visitors: There is a lot of information about our Binoviewer systems that can be accessed on this website. Deciding which Denk Binoviewer System is the perfect one for you, especially if you own more than one telescope can be a bit confusing. So, we suggest that you first use the Shopping Guide and choose the type of scope that you will be using from the telescope list provided. Get a bit of background information. You may feel like you now have enough information to make an informed choice. However, we are here to answer all of your questions so that you can be sure that you have selected the correct product that best matches one or all of your telescopes. We encourage and welcome you to call us (Contact) with any questions that remain after exploring this website, even if this is just to confirm that you have chosen wisely. We receive calls from all over the world everyday and are happy to help you in the selection process. We know that those of you who are pursuing an understanding and appreciation of the heavens through visual observation expect nothing less than outstanding and trouble-free performance when adding a Denk. Whether you are are just beginning, or a seasoned veteran, we are always willing to spend as much time as necessary to help you take in the wonder that is The Cosmos, "The Denk Way".
"Please Use The Shopping Guide"
"Frequently Asked Questions"
"Important Quality Information!!"
"Customer Comments"
"Our Matched Eyepiece Pairs"
"Star Diagonals"
"Manuals"
"Reviews"
Focal Reduction With a Denk Binoviewer In A Dob??
Click Here For more information
USA-Made Prisms Featuring 100% Dielectric Coatings Shipped World Wide to 35+ Countries and Counting!! Add our Matched D21mm and D14mm 65 degree eyepieces. They are guaranteed to render amazing performance in your Denk. We assemble them right here in the USA.
"The Vast and Mysterious Universe Deserves to Be Viewed With Nothing Less Than a Denk!" - Anonymous
OK.... I admit it. I said it. But it's true!!! -Russ
We Accept Credit Card Payment From Our Amateur Astronomy Friends From All Over The World! We Provide Systems To Customers In Over 35 Countries On Our Planet Earth!!
6% Maryland Sales Tax will be added to all retail prices for Maryland, USA residents.
I did have a chance to try the unit out in my LX90 last night. Simply Amazing! I don't think I can ever go back to monocular viewing! And the binoviewer itself is a work of art. I am extremely impressed. I had my best look yet at Comet Holmes in reduction mode of the Power x Switch.-R. Harris 11-15-07
 
The New, Protective Filter Switch....Click Here!!
The Filter Switch is Reviewed on Cloudy Nights.... Click Here
 Instant Switching Between Filters! Now reviewed in Astronomy Technology Today
October, 2007 Issue
The Image Above Is a Web Link To The New Nightvision Astronomy Website, where BIPH ordering information can be found.
Exclusive Denkmeier Accessories for BIPH such as Power Switch Star Diagonals and Filter Switches and thread-on Barlows and Reducers can be found right here on this website. These accessories allow BIPH to become amazingly versatile and operate to the full potential in SCTs, Refractors, and Newtonians. Yes, BIPH can utilize our focal reducers even in Newtonians!
Call for more information.
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