Another fascinating video about takahashi factory

[Fedele]

 

Edited January 18, 2021 by Fedele

[John]

Before they made telescopes, Takahashi were a specialist sand casting company:

http://astrosurf.com/sogorb/takahashi/takahashi.html

[Fedele]

Another fascinating video about takahashi factory where, among other things, you can notice the scrupulous "artisan" operations of centering the optics

https://youtu.be/BC0dBh53dyI

[mikeDnight]

It really makes you appreciate how much personal care & attention goes into each telescope. Thanks for posting the video!

[vineyard]

These videos are great - thanks for sharing - the mismatched subtitles are surreal (Youtube still need to work on that tech).  I had never appreciated the craft that goes into these (classic Japanese eye for detail though!).  I wonder if there are any videos from AP or TEC or Televue manufactories?

Cheers

[mikeDnight]

Who are AP, TEC and Televue?

Sorry, I couldn't help myself! 

[newbie alert]

Who new that it was that involved..

[Alien 13]

1 hour ago, John said:

Before they made telescopes, Takahashi were a specialist sand casting company:

http://astrosurf.com/sogorb/takahashi/takahashi.html

I noticed that from the first video posted but was surprised that the sand castings had runners but no risers..they did have a lot of sacrificial metal in the pattern though.

Alan

[John]

Am I correct that the optical elements for all Takahahsi refractors are made by Canon Optron ?

or is it just certain model ranges ?

[Alien 13]

1 minute ago, John said:

Am I correct that the optical elements for all Takahahsi refractors are made by Canon Optron ?

or is it just certain model ranges ?

The flourite elements will be Canon not sure about the others by why wouldn't you..

Alan

[mikeDnight]

1 hour ago, John said:

Am I correct that the optical elements for all Takahahsi refractors are made by Canon Optron ?

or is it just certain model ranges ?

I'd imagine Canon Optron produce all the refractor objectives, as they produce large multi element camera objectives, not always fluorite. Plus they are a known quantity and so could be relied upon to keep the very high standard required.

Edited January 17, 2021 by mikeDnight

[JeremyS]

You need to get one of these genuine Tak hats, @mikeDnight. 
I’d heard Dave @F15Rules has taken to wearing one when using his FS128.

Edited January 17, 2021 by JeremyS

[Seme]

4 hours ago, Fedele said:

 

At 12.00 theres a Celestron Cardboard box upside down i'm sure it is.

[John]

9 minutes ago, Seme said:

At 12.00 theres a Celestron Cardboard box upside down i'm sure it is.

Yes, I think you are right. Maybe they are just re-branding Celestron scopes really ?

[jock1958]

Thanks for posting this @Fedele and a great insight into how they produce these wonderful scopes using tried and trusted methods of old.

Loved the sand casting, reminds me of metalwork during my school days in the mid 1970's!!