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manufacturers
Manufacturer: DayStar .. Solar
Product number: E-140N100
EUR898.80new
EUR 898,80
incl. 19 % VAT (DE)
The VAT indicated refers to that applicable in Germany. After logging in, the VAT amount is adjusted to the applicable VAT of the stored delivery country. Therefore, the final price may vary accordingly.
excl. 6.95 € shipping costs (DE)
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rating: 5.0 of 5Daystar 100 mm Energy Rejection Filter for Solar Observation, for 140 mm tube diameter2
- Details..
- Technical data..
- In the box..
Daystar 100 mm Energy Rejction Filter for Solar Observation with H-alpha Filters
This pre-filter is used for heat reduction for H-alpha and prominence observation.Energy Rejection Filters reduce the heat load on your filter assembly by absorbing or reflecting UV and/or Infrared light and transmitting light in the desired visual spectrum. These filters are sometimes Red or Yellow glass, or dielectric IR and UV, but pass light in the desired visual spectrum. The ERF can also serve as an aperture mask to accomplish a straight angle of incidence for light entering the filter.
DayStar filter assemblies operate best at f/30 and slower. Creating f/30 configuration can be done easily with the proper ERF and/or barlow lens.
Important Note: This Energy Rejection filters are intended for use only as a Pre-Filter for Solar observation.
| Filter type: | energy protection filter for solar observation |
| Filter shape: | round |
| Filter mount: | aluminum |
| Filter diameter: | 100mm |
| Frame diameter (tube dimension): | 140mm |
| Weight: | 0,86 kg |
Recommended accessories
Adaptors
General Accessories
Reviews
Written by Jean Lammertyn
on 2020-10-20
"Outstanding product! Quality and safety at the highest level."
Written by Jean-François ROUDIER
on 2017-02-07
"Very good product, I am a solar observer, I need this kind of material."
Written by Sascha Kunka
on 2016-05-26
"Sehr gute Qualität"
