Filters
Our Circular Variable ND filters ( Mounted ) are designed to provide continuous variable attenuation by rotating the filter. Front side of our variable filter is coated with Inconel thin film and back side is antireflection coated to reduce unwanted reflection losses. Holmarc offers variable neutral density filters in two substrates; BK7 or equivalent & Fused Silica.
| Model No. | OD ( mm ) | ID ( mm ) | Material | Price |
| HO-VND-N50 | 50 | 13 | BK7 or equivalent | ₹ 25617.00 |
| HO-VND-F50 | 50 | 13 | UV Fused Silica | ₹ 34472.00 |
| HO-VND-N75 | 75 | 25 | BK7 or equivalent | ₹ 32195.00 |
| HO-VND-F75 | 75 | 25 | UV Fused Silica | ₹ 39532.00 |
| HO-VND-N100 | 100 | 25 | BK7 or equivalent | ₹ 36622.00 |
| HO-VND-F100 | 100 | 25 | UV Fused Silica | ₹ 45477.00 |
Established in 1993, Holmarc Opto-Mechatronics Ltd manufactures variety of scientific and engineering instruments for research, industry and education.
ISO 9001:2015 Made in INDIA
CIN : L33125KL1993PLC006984
GST No : 32AAACH9492C1ZQ
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B.7., H.M.T. Industrial Estate
H.M.T. P.O, Kalamassery, Kochi
Kerala, India - 683 503
+91 920-719-7772 / 6 / 1
sales@holmarc.com
Mon - Sat : 9 am to 5 pm
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