We recommend: | ||
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zenpri1 120.00 EUR |
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zen99c2 ONLY SUPPORT |
||
bagOkular7 32.90 EUR |
||
AluCok 34.90 EUR |
... for a dielectric zenith mirror with 99% reflection?
Thanks to dielectric (non-metallic) coating, the Castell zenith mirror not only has a high reflectance of 99%, but also a long service life. The long service life is achieved because the non-metallic dielectric surface reacts much less with the acids and bases in the air than an aluminum coating with a quartz protective layer.
The 31.7mm socket has a ring clamp with a large knurled screw.
Test procedure: Take a test photos
with a camera through the diagonal (ISO200, manual mode), then measure
the brightness value in Photoshop using a histogram.
This test serves as an estimate of the zenith reflection. The following models were tested:
zenpri1 | Takahashi Diagonal Prism MC 1,25", Made in Japan | 120.00 EUR | ||
zen99c2 | 2" star diagonal with 99% reflection, dielectric coating, L/10 PtV | ONLY SUPPORT | ||
bagOkular7 | waist case eyepiece holder (Lacerta) | 32.90 EUR | ||
AluCok | Eyepiece case | 34.90 EUR | ||
CleanSetLa | LACERTA Cleaning Set 4 in 1 (Cleaning Fluid, Microfiber Cloth, Cleaning Brush and Air Blower) | 19.90 EUR |