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|
April 25, 2016 |
| WideBino28 was entirely renewed in April 2016 - the optical quality, usability
and versatility are all dramatically improved. The detailed information
is following: |
| - Optics - |
| While keeping the excellent optical design as it was, the polishing accuracy
has been improved, and adding very high transmission broadband multi-coating
on every optical surface - resulting higher sharpness and better image
contrast than the former model's. |
| - Interpupillary Distance - |
| The minimum interpupillary distance of the former model was 58mm - a little
too wide for some users. It's now down to 52mm, covering almost all the
people including young children. |
| - Diopter Range - |
| The diopter range to focus infinity was rather narrow in the former model
- any shortsighted person whose eyes were below -4 diopter couldn't reach
the infinity focus. Now it comes down further - anybody whose eyes are
over -6 diopter can reach the infinity focus. |
| - Eyecup - |
| Galilean telescope system has no eye-relief. The best way to see the widest
field of view is to "press" your eyes close to the eye lenses.
Therefore, it's essential to see through WideBino28 with your naked eyes.
The distance between the eyecup end and the eyelens surface was 7mm in
the former model, but it's now 5mm. You don't have to press your eyes so
tightly to the eye-lenses to see the widest field of view. |
| - Size & Weight - |
| The new model is 3mm shorter in the width and 25-grams lighter than the
former one. |
| - Strap - |
| There were no strap holders in the former model and it was inconvenient
to wear it during the observations. Now two strap holders are added on
both sides, and a neckstrap comes as a standard accessory. A 255-gram lightweight
unit can be pulled around your neck without any stress - you can use it
anytime you want to see.The inside size of the strap holder is large enough
as 10mm length / 3mm width - switchable to other fasionable straps for
mobiles or compact cameras. |
|
| <Comparison of Former / New WideBino28> |
| |
<Former>  |
<New>  |
| Clear Aperture |
40mm |
40mm |
| Power |
2.3x |
2.3x |
| Field of View |
28゜ |
28゜ |
| Coating |
Fully Multi-Coating |
High-Transmission Broadband Multi-Coating |
| Max. Dimensions |
123mm x 43mm x 50mm |
123mm x 40mm x 50mm |
| Weight |
280g |
255g |
| Interpupillary Distance |
58mm - 73mm |
52mm - 73mm |
| Diopter Range to focus infinity |
> -4 diopter |
> -6 diopter |
| Focusing mechanism |
IF |
IF |
| Eyecup Depth |
7mm |
5mm |
| Strap Holders |
N/A |
Two (both sides) |
| Standard Accessories |
Front & Rear Dustcovers
Soft Carrying Case |
Front & Rear Dustcovers
Neckstrap, Soft Carrying Case |
| Price |
JPY14,000 |
JPY15,000 |
|