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No More Vixen A81M Achro

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#1 dmgriff

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Posted 10 August 2023 - 04:58 PM

From what I can gather looking at the Vixen Japan and Vixen USA (Explore Scientific) web pages Vixen has discontinued the A81M f/11.2 (Japan) achromatic refractor.

 

https://global.vixen...roduct/39992_5/

 

https://explorescien...480df4e44&_ss=r

 

I do not find the A80Mf f/11.4 (Synta/China, all metal ota) on the Explore Scientific web site. It is still listed on the Vixen Japan (English) web site as available with Vixen AP mounts. 

https://global.vixen.co.jp/en/?s=a80mf

 

The A70Lf f/12.9 (Synta/China, I think metal tube, plastic shield and snug focuser with metal drawtube) is listed on the Japan web site.

 https://global.vixen...roduct/26020_1/

 

The A105MII f/9.5 (Japan) achro is still available.

https://global.vixen...roduct/26071_3/

 

All of the above have good reviews on US and EU/UK pages.

 

The A81M is a nice f/11.x excellent achro optics, since Vixen is supposed to market to a Japanese base, I guess they were no longer in demand in that market. 

 

Good viewing,

 

Dave

 

 



#2 vtornado

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Posted 10 August 2023 - 05:16 PM

I think the cheap EDs killed it.  I have a celestron/vixen classic 80 f/11. It is a great telescope.  It does everything you would expect a long focal length 80mm to do.  It will stay in my stable forever. My Orion 80ED is better by a little bit, and easier to mount.


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#3 desertlens

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Posted 10 August 2023 - 05:25 PM

This is unfortunate but I suppose inevitable in an era of affordable apochromats. Still, the A81M is a respectable performer.

 

VixA81M.jpg


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#4 Winston6079

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Posted 10 August 2023 - 10:02 PM

People in Asia (especially in China, Japan and Korea) generally suffer from extremely cramped living space. Personal hobbies often lead to disputes among family members.

 

Short focal length telescopes (or SCTs, Maks) require much less storage space than long achromatic (or apo) refractors.


Edited by Winston6079, 10 August 2023 - 10:09 PM.


#5 gzljh96

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Posted 11 August 2023 - 06:26 AM

I think the cheap EDs killed it. I have a celestron/vixen classic 80 f/11. It is a great telescope. It does everything you would expect a long focal length 80mm to do. It will stay in my stable forever. My Orion 80ED is better by a little bit, and easier to mount.

I think what killed it is the A80M (Synta) which very much overlaps with what the A81M does. Vixen probably doesn’t want two very similar scopes on their catalogue.

The A81M is listed as Discontinued - Available while stock lasts:

https://www.vixen.co...roduct/39952_9/

Edit: an anecdote, but last week when I went to Kyoei Osaka, there happened to be a Japanese mother with her daughter, seeking to buy (presumably) her first telescope. Neither was experienced in astronomy, so the staff spent a lot of time explaining and giving recommendations. The two top recommendations were the A70M and the ED80, both on Porta 2s. I think the ED80 is cheap enough that it was recommended to beginners (or that’s just what they had in stock).

Edited by gzljh96, 11 August 2023 - 06:39 AM.


#6 Winston6079

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Posted 11 August 2023 - 06:58 AM

Off-topic a bit, the A80Mf “Asteroid in Love” special edition is still available.

https://www.vixen.co...roduct/73689_8/
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#7 dmgriff

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Posted 11 August 2023 - 09:54 AM

This is unfortunate but I suppose inevitable in an era of affordable apochromats. Still, the A81M is a respectable performer.

 

attachicon.gif VixA81M.jpg

I also use a A81M on a M002c/column, nice setup. The M002c is a much more stable platform than the Porta/clones that the M and Mf are often paired with. The A81M also sits nicely on my Ioptron AZ Pro mount.

 

Good viewing,

 

Dave


Edited by dmgriff, 11 August 2023 - 10:26 AM.


#8 dmgriff

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Posted 11 August 2023 - 10:07 AM

I think what killed it is the A80M (Synta) which very much overlaps with what the A81M does. Vixen probably doesn’t want two very similar scopes on their catalogue.

......

The A81M (Japan) has better optics and better manufacture than the A80Mf (Synta) although the A80Mf is no slouch, it is the best of the Chinese 80mm f/11.x achros. The A81M is about 1.67x the cost of the A80Mf in the US. The Mf probably has a better market as a entry level scope, or for those not willing to pay the higher cost. 

 

Good viewing,

 

Dave



#9 dmgriff

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Posted 11 August 2023 - 10:22 AM

I was able to obtain a A80Mf (Synta) as open box a few years back for 150usd. I liked it so much that I purchased the A81M (Japan) version. The A81M had just replaced the A80M in the states, as the old Vixen site still only showed the 80 when I ordered. The cell and focuser thread on the M, secured with screws on the Mf. The 1.25in focuser on the Mf, had a slight amount of slop, the 2in on the M smooth and snug. The M was spot on with collimation, the Mf a little off.

 

Also purchased some Tak Abbe Orthos, 18, 12.5, 9, 6, 4mm as a set for all my slow f scopes. 

DSC00139
 
Good viewing,
 
Dave

Edited by dmgriff, 11 August 2023 - 04:41 PM.


#10 gnowellsct

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Posted 11 August 2023 - 02:55 PM

Vixen SD81s is a sweet ride.  Maybe the word is out.



#11 dmgriff

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Posted 11 August 2023 - 04:36 PM

Vixen SD81s is a sweet ride.  Maybe the word is out.

The Vixen SD81S f/7.7 has been Discontinued in 2023. Re Explore Scientific Vixen USA distributer and Vixen Japan site. .

 

I could tease and not state that it has been replaced by the SD81Sll. Re the Vixen Japan global site linked to in above posts. I gather that they added a spacer ring to replace the foil spacers. It is supposed to help with astrophotography applications.

 

No idea if that will affect the US price of 1400usd.

 

Also, the SD103S, SD115S, Discontinued 2023 and are now SII's with the spacer ring.

 

Good viewing,

 

Dave


Edited by dmgriff, 11 August 2023 - 05:26 PM.

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#12 T1R2

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Posted 11 August 2023 - 05:07 PM

I noticed this too as I was in the market for a 80mm long-ish achromat, and I wanted to get one of them, sad news to hear, I was afraid that was what had happened to them



#13 tony_spina

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Posted 11 August 2023 - 08:40 PM

Not a fan of spacer rings. Hope they have a good implementation 



#14 sdedalus83

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Posted 11 August 2023 - 09:09 PM

Not a fan of spacer rings. Hope they have a good implementation 

The SD81SII has been around for several years and Vixen Japan has/had a replacement program for the earlier ED and SD scopes. It’s not a new for 23 thing. I don’t think the 103 received the ring prior to now because the spacers are much smaller relative to the objective and were more obscured by the cell, making their impact much less pronounced.



#15 25585

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Posted 12 August 2023 - 04:27 AM

Mine is a keeper along with its 102 bigger brother, both Japanese made. 



#16 osbourne one-nil

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Posted 12 August 2023 - 07:19 AM

Not a fan of spacer rings. Hope they have a good implementation 

Works perfectly with mine - my previous SD81S on the left. 

 

IMG_8208.JPG


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#17 T1R2

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Posted 12 August 2023 - 02:41 PM

Not a fan of spacer rings. Hope they have a good implementation 

I am, I'll take a spacer ring any day over those foil tabs, I love how when I clean my lens the ring is just placed to the side, I don't have to worry about knocking the foil spacers off, and trying to glue them back in place, etc.


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#18 dmgriff

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Posted 13 August 2023 - 11:14 AM

Off-topic a bit, the A80Mf “Asteroid in Love” special edition is still available.

https://www.vixen.co...roduct/73689_8/

The A80Mf (Synta/China) is apparently marketed as a family/youth scope in Japan. I saw a Vixen video about the AP mount with the A80Mf that centered around a Japanese family camping and enjoying the setup. 

 

Good viewing,

 

Dave


Edited by dmgriff, 13 August 2023 - 11:16 AM.


#19 25585

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Posted 14 August 2023 - 05:17 AM

I buy Vixens and Taks because I want Japanese optics. 


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#20 hyia

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Posted 14 August 2023 - 09:32 AM

I buy Vixens and Taks because I want Japanese optics. 

 

I feel the same.  If no weight is given to the country of origin, it's very hard to argue against just choosing the Astro-Tech product closest to your needs based solely on the quality/price ratio.  Anyways, for those that still want an 80mm scope similar to the Vixen, I believe the Starbase 80 is still being produced and is in stock now: https://landseaskyco...escope-w-tripod .  It might even be a better deal than the Vixen since it includes the diagonal and couple of eyepieces which have been well reviewed as well.  The only issue is that I think it is f10 instead of f11. 



#21 dmgriff

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Posted 14 August 2023 - 12:28 PM

I feel the same.  If no weight is given to the country of origin, it's very hard to argue against just choosing the Astro-Tech product closest to your needs based solely on the quality/price ratio.  Anyways, for those that still want an 80mm scope similar to the Vixen, I believe the Starbase 80 is still being produced and is in stock now: https://landseaskyco...escope-w-tripod .  It might even be a better deal than the Vixen since it includes the diagonal and couple of eyepieces which have been well reviewed as well.  The only issue is that I think it is f10 instead of f11. 

The Starbase 80 is marketed as a entry level scope as is the A80Mf. The SB80 (Japan) is a basic design and build as is the A80Mf (Synta). I looked at the SB80 at Land, Sea & Sky a couple of years back and the SB80 appeared to me to be a more solid build than the A80Mf. The SB80 is not the same build quality as the A81M/A80M. I would expect the optics to be quite good. The inlcluded alt/az mount and the SB80 ota could have been made for each other. The price was very close to the A80Mf and a Porta II package at the time, especially if you replaced the included diagonal with the A80Mf with something like a AT 99% 1.25in dielectric. 

 

Good viewing,

 

Dave


Edited by dmgriff, 14 August 2023 - 12:31 PM.

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#22 gzljh96

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Posted 14 August 2023 - 09:05 PM

The Starbase 80 is marketed as a entry level scope as is the A80Mf. The SB80 (Japan) is a basic design and build as is the A80Mf (Synta). I looked at the SB80 at Land, Sea & Sky a couple of years back and the SB80 appeared to me to be a more solid build than the A80Mf. The SB80 is not the same build quality as the A81M/A80M. I would expect the optics to be quite good. The inlcluded alt/az mount and the SB80 ota could have been made for each other. The price was very close to the A80Mf and a Porta II package at the time, especially if you replaced the included diagonal with the A80Mf with something like a AT 99% 1.25in dielectric.

Good viewing,

Dave


I went to Starbase (the Akihabara shop) a few days ago and saw the SB80 in person, so they are definitely still selling it.

I forgot about the exact pricing, but to play demon’s advocate I’d like to raise a few points:

- The SB80, just like the A80Mf, features a basic 1.25” focuser and comes with a plastic diagonal. It is NOT the same focuser as the much more expensive Takahashi FC-76DCU/60CB and it’s very obvious when the two are placed side by side, I.e. how it was in the Starbase store.

- The SB80 features a Takahashi alt-az mount which they also pair with other Tak scopes, and it’s similar to the AZ-3 (?) cheap Synta scopes are paired with. But personally I will prefer the much more versatile Porta 2: when you upgrade your scope, you would have no use for the Tak mount unless you mod it, but a Porta 2 will be useful for many years.

- Domestically in Japan, the Vixen is still cheaper and more widely available. It’s a lot more expensive than your usual Chinese achromats outside of Japan.

Overall the SB80 is a nice scope, but being made in japan means it has a premium over normal achromats, especially outside of Japan. One has to wonder whether it’s worth paying for this premium instead of going for a cheap ED doublet.

#23 dmgriff

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Posted 15 August 2023 - 09:40 AM

I went to Starbase (the Akihabara shop) a few days ago and saw the SB80 in person, so they are definitely still selling it.

I forgot about the exact pricing, but to play demon’s advocate I’d like to raise a few points:

- The SB80, just like the A80Mf, features a basic 1.25” focuser and comes with a plastic diagonal. It is NOT the same focuser as the much more expensive Takahashi FC-76DCU/60CB and it’s very obvious when the two are placed side by side, I.e. how it was in the Starbase store.

- The SB80 features a Takahashi alt-az mount which they also pair with other Tak scopes, and it’s similar to the AZ-3 (?) cheap Synta scopes are paired with. But personally I will prefer the much more versatile Porta 2: when you upgrade your scope, you would have no use for the Tak mount unless you mod it, but a Porta 2 will be useful for many years.

- Domestically in Japan, the Vixen is still cheaper and more widely available. It’s a lot more expensive than your usual Chinese achromats outside of Japan.

Overall the SB80 is a nice scope, but being made in japan means it has a premium over normal achromats, especially outside of Japan. One has to wonder whether it’s worth paying for this premium instead of going for a cheap ED doublet.

Well, we agree that the SB80 and A80Mf are entry level scopes and are marketed as such. I believe they are both of better quality and manufacture than say the Celestron, Meade, ES etc. entry level refractors.

 

However to counter some of your demons advocate points:

 

The mount included with the SB80 seemed suited to the ota and usable to me. No comparison to the AZ3 (below), which I unfortunately purchased as one of my beginner experiments. The AZ3 would not even support my ST80 properly, the ota was too back heavy for it. For some reason Synta failed to include the counterweight system on the old Vixen mount it copies. The Porta II is great for short scopes, but it is about overmounted with a 80mm f/11 (80Mf,81M),114/900 newt or such in my usage due to moment arm. I have switched to a Stellarvue M002c on surveyors tripods.

 

AZ3

https://www.bhphotov...HRoCIrcQAvD_BwE

 

The Vixen A80Mf Pota II package is listed at 740usd-850usd in the US on some vendors sites. I do not know if it is still available thru the Vixen USA (Explore Scientific) distributor as neither the ota or the mount seem to be listed on the ES/Vixen web site (at least that I can find).

 

In the USA, the SB80 is 690usd complete. One can purchase a price point entry level AT80ED and Twilight I az  mount for ~720usd plus cost for finder, 2in diagonal, eyepieces etc which could be easily 300+usd (a noticeable difference in price to some).    Either would be a nice setup for a beginner or a more seasoned observer. Many of the CN following for the SB80 seem to be as a grab and go additional scope. 

 

Good viewing,

 

Dave


Edited by dmgriff, 15 August 2023 - 10:44 AM.


#24 gzljh96

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Posted 16 August 2023 - 08:13 AM

Well, we agree that the SB80 and A80Mf are entry level scopes and are marketed as such. I believe they are both of better quality and manufacture than say the Celestron, Meade, ES etc. entry level refractors.

 

However to counter some of your demons advocate points:

 

The mount included with the SB80 seemed suited to the ota and usable to me. No comparison to the AZ3 (below), which I unfortunately purchased as one of my beginner experiments. The AZ3 would not even support my ST80 properly, the ota was too back heavy for it. For some reason Synta failed to include the counterweight system on the old Vixen mount it copies. The Porta II is great for short scopes, but it is about overmounted with a 80mm f/11 (80Mf,81M),114/900 newt or such in my usage due to moment arm. I have switched to a Stellarvue M002c on surveyors tripods.

 

AZ3

https://www.bhphotov...HRoCIrcQAvD_BwE

 

The Vixen A80Mf Pota II package is listed at 740usd-850usd in the US on some vendors sites. I do not know if it is still available thru the Vixen USA (Explore Scientific) distributor as neither the ota or the mount seem to be listed on the ES/Vixen web site (at least that I can find).

 

In the USA, the SB80 is 690usd complete. One can purchase a price point entry level AT80ED and Twilight I az  mount for ~720usd plus cost for finder, 2in diagonal, eyepieces etc which could be easily 300+usd (a noticeable difference in price to some).    Either would be a nice setup for a beginner or a more seasoned observer. Many of the CN following for the SB80 seem to be as a grab and go additional scope. 

 

Good viewing,

 

Dave

Agree re: build quality --- I wasn't impressed by the SB80's build quality, but that was because I was comparing it to the otherwise similar-looking FC-76DCU (which had a much worse focuser than the scope I ended up buying, the FSQ-85, in turn). I had bad memories of older Synta fracs, especially with how sloppy the focuser could be, but they are still much cheaper.

 

The price argument is much weaker in Japan itself, where the SB80 is at 63,800 yen and the A80Mf is at 52k yen or so. The SB comes with orthoscopic EPs and the Vixen, plossels; but the SB lacks a real finder. However, both have a large price advantage over ED/fluorite scopes, as the SW72ED by itself is 50,000 yen and the SW80ED (comes with EPs and diagonal) is 90,000 yen. The Vixen ED80 set w/ Porta 2 is 135k yen and Starbase's cheapest offering is the FS-60CB w/ SW AZ Pronto is at 115,000 yen... and you still need to buy eyepieces and the diagonal, not to mention the FS-60CB, while a fine scope, is of a smaller aperture.

 

Within Japan Vixen also enjoys a much better distribution route than Starbase. The Vixen is sold in many camera or electronics shops in Japan in addition to astronomy shops; quite often it was one of the kits on display. You can quite easily go and see one of those before buying. As the Starbase is not a real Takahashi product, its sales is largely limited to --- you guessed it, Starbase, Takahashi's shop in Akihabara, Tokyo. 

 

Personally though, as someone who lives in the UK and does imaging primarily, I fail to see why I'd want something that is essentially a well-built, but expensive, long F-ratio 80mm achromat. At 649 GBP you can quite easily grab yourself a SW72ED + diagonal + eyepieces and mount, or even grab a used Takahashi FS-60, or a larger ED doublet/triplet, eyepieces and mount for a bit more. The same goes for the Vixen. I'd rather get a cheap, collapsible SW reflector for visual instead, but I digress.



#25 Oldfracguy

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Posted 16 August 2023 - 11:44 AM

Has anyone seen this?  It looks like an even better option (other than price) than the A81M:

 

https://www.firstlig...rp-focuser.html




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