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PENTAX VD 4x20 WP

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#1 Huan

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Posted 07 August 2020 - 09:22 PM

The world‘s first* 3-in-1 binoculars; 10° true FOV.

 

http://www.ricoh-ima...l/vd4x20sp.html

 

https://youtu.be/mmtOhsAFRAI

 

https://www.bhphotov...ular.html/specs

 

what do you guys think about it?


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#2 SMark

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Posted 07 August 2020 - 09:39 PM

Cute concept. 40° AFOV is discouraging. I really can't see myself needing anything like that though.


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#3 Huan

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Posted 07 August 2020 - 09:51 PM

Cute concept. 40° AFOV is discouraging. I really can't see myself needing anything like that though.

Oops, I didn’t pay attention to that part. Basically I’m thinking of anything that could potentially resemble Miyauchi 5x32 because I cannot find any in the market for years.

 

I just noticed that your Kowa 6.5x32 BD II provides 10° TFOV AND 65° AFOV. How do you like it? Would you recommend it?


Edited by Huan, 07 August 2020 - 09:55 PM.


#4 SMark

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Posted 07 August 2020 - 11:36 PM

The Kowa is a very nice binocular. The only thing I could complain about is that it has a bit too much globe and not enough pin cushion. But everyone is different about what they like in that regard. I do use it most every day and I'm quite happy with it.



#5 Simon B

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Posted 08 August 2020 - 02:44 AM

Thanks for bringing this to our attention  -  am watching with great interest

 

popcorn.gif



#6 Rokkor

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Posted 08 August 2020 - 03:59 AM

Mizar makes a 4x22 with 17° FOV. Made in China, good reviews.

shorturl.at/cnKOZ

Probably the same model as this one: https://www.cloudyni...22-first-light/



#7 Alan French

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Posted 08 August 2020 - 06:13 AM

Interesting, but not enticing. The 16x20 monocular arrangement seems more of a gimmick than useful, and I agree that a 40-degree AFOV does not seem attractive. 

 

The new Swarovski 8x42 NL Pure has a 69-degree AFOV and a 9.1-degree true field. It is also an order of magnitude more expensive and too new to be well known. Speculation says, if they make an 8x32 version, it could have an ~10-degree field. Time will tell.

 

Clear skies, Alan 



#8 Swedpat

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Posted 08 August 2020 - 11:57 AM

I agree with other opinions here. Pretty cute instrument but the narrow AFOV is a drawback. 

I wonder how well it holds the collimation after a while of repeted separation of the tubes. But with only 4x it's not as important as with higher magnification I guess.

Adding the tubes for 16x may be nice if some kind of support is available. 1,25mm exit pupil is dim for normal use but may work good for moon studies and the planets. If the optics is good enough: the light has to pass through 2 optical systems with total 4 prisms which always results in lower performance. 

But I would like to read a careful review of this instrument!



#9 Huan

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Posted 08 August 2020 - 02:31 PM

 

I wonder how well it holds the collimation after a while of repeted separation of the tubes.

...

the light has to pass through 2 optical systems with total 4 prisms which always results in lower performance. 

 

That’s some very good points!


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#10 Huan

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Posted 08 August 2020 - 02:39 PM

The new Swarovski 8x42 NL Pure has a 69-degree AFOV and a 9.1-degree true field. It is also an order of magnitude more expensive and too new to be well known. Speculation says, if they make an 8x32 version, it could have an ~10-degree field. Time will tell.

 

Really? I can only see 10x42 on their website right now. 9.1 degree true field would be larger than Zeiss Victory SF 8x32 ( 8.81 deg. )

 

Now I have to skip Zeiss SF and save up for Swarovski NL mad.gif



#11 Huan

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Posted 08 August 2020 - 02:45 PM

Thanks for bringing this to our attention  -  am watching with great interest

 

popcorn.gif

Thank you for the wide fov binoculars in your signature;

 

Mizar makes a 4x22 with 17° FOV. Made in China, good reviews.

shorturl.at/cnKOZ

Probably the same model as this one: https://www.cloudyni...22-first-light/

and thank you for the link. You guys just opened a whole new world to me!! I’m looking for something to fill the gap between my Vixen 2.1x42 and other 6.5° field binoculars.



#12 Alan French

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Posted 08 August 2020 - 02:51 PM

Really? I can only see 10x42 on their website right now. 9.1 degree true field would be larger than Zeiss Victory SF 8x32 ( 8.81 deg. )

 

Now I have to skip Zeiss SF and save up for Swarovski NL mad.gif

No one knows if Swarovski eventually make an 8x32 version. It was just speculation at another venue. For now, just wishful thinking by a few folks.  

 

Clear skies, Alan




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