Saturday, March 21, 2015

Oculare ortoscopice /Orthoscopic oculars

Oculare mele ortoscopice.



My orthoscopic eyepieces.


De la dreapta la stanga : Circle V 9mm , Circle V 7mm ,CircleV 5mm si Kasai 4mm.




From right to left : Circle V 9mm , Circle V 7mm ,CircleV 5mm and Kasai 4mm.

Toate aceste patru oculare ortoscopice  sunt de productie japoneza.
Ocularele Circle V au diametrul  standard japonez de 0.965'' dar fiecare este montat intr-un adaptor pentru utilizarea in portocularele de 1.25''.
Ocularul ortoscopic de 4mm este construit pe standardul american de 1.25''.

Campul vizual al acestor oculare  este intradevar  mai mic decat al altor tipuri de oculare.
Iar pupila de iesire este intradevar apropiata de lentila de ochi.
Dar nici marimea campului vizual si nici pozitia pupilei de iesire nu imi creaza nici un fel de probleme.
Castigul adus de calitatea deosebita a imaginii este mult mai important decat caracterul sportiv, de-a dreptul spartan , al acestor oculare.
Cei care nu se pot adapta la ''stilul ortoscopic'' se pot indrepta spre formulele mult mai sclifosite.
Dar eu nu trebuie sa fac aceasta.
Fiecare din aceste oculare este foarte bun si este o placere sa-l folosesc!

All this orthoscopic oculars were manufactured  in Japan.
The Circle V oculars have an outside diameter according to Japanese standard of 0.965'' but each is mounted in an adapter for use in 1.25'' focusers.
The 4mm orthoscopic is already built to american standard of 1.25''.

The visual field of these oculars is indeed smaller than of other types of oculars.
And the exit pupil is really close to the eye lens of the eyepiece.
But the size of the visual field and the shorter eye relief  did not create any problems to me.
The gain brought by the high quality of the image is more important than the sporting ,  downright spartan  character of these oculars.
Those who can not adapt to the '' orthoscopic style ''  may turn to more finicky oculars.
But not me.
These oculars seem  very good  to me and it is a pleasure to use each of them!