PENTAX 105SD; Doublet type SD APOCHROMART D=105mm FL=1000mm
SMC Multi-coated full.

* PENTAX 105SD, The coating is PENTAX SMC Multi-coating, ( 4 aspects, full coated).
so when everyone try to take a picture of the lens, he will understand that there is little diffused reflection of the light.

Also, the paint in the OTA is ( of course) polite.

These effect will be easily understood when we watch real stars , the Moon.

This is PENTAX !!

< By the way, Person can't do lens maintenance by normal tool ... For it, PENTAX Special tool is needed. without it, impossible>

Anyway, PENTAX lens is Special !!

koji matsumoto . 01/Feb in 2018