PST90 Stage 2 Modification Video

[swashy]

PST 90mm Stage 2 Modification video by UKAI's Simon Metcalfe (nomis elfactem) shot at Gravity Stonehenge 2014




(Si will probably hate me for posting this - but I think it will be very useful for anyone getting into their solar stuff)  -Sorry Si!   

[psjshep]

  well done Si, & Ade for the production

Phil

[chris.bailey]

All public information films shoudl include a bottle of Crabbies. I'd of taken far more notice of the green cross man if he was necking from a bottle!

Nice one Si and Ade

Just realised I am munching a pork pie in the background...could have been worse!

[Nomis Elfactem]

Caught red-handed Chris !!

I don't hate you Ade.... I just have the same aversion that everyone else does about hearing my own dulcet tones (with a considerable number of "errrms") 

...and can I just point out that in the final "pose" I was taking the p*ss by sticking my chest out like some strutting robin (I was going to say another bird but it would have just laid (hehe - he said "laid") me open to another years worth of abuse 

On a serious note though - if anyone watching this wants more detail just drop me a line 

S.

[swashy]

100+ views so far on youtube Simon! 

[Nomis Elfactem]

How scary is that ????

[Eccoskies]

99 of those are Si himself 

Mark
 

[Nomis Elfactem]

True 

At least it's in focus 

S.

[psjshep]

oooooo.... he had to say it.... he had to say it


Phil

[swashy]

600+ views - We should do more of this stuff

[Nomis Elfactem]

We should plan a couple for Kelling and maybe we could do one at the Eclipse Chase?

S.

[Gremlin]

great video for people considering this mod

[ChrisLX200]

Would this mod work with an f/11 90mm Vixen achro?  I have this OTA and it is otherwise doing nothing, thinking maybe I could buy a cheap PST and use it to convert to a larger solar scope. Who sells a suitable 90mm ERF?

ChrisH

[Nomis Elfactem]

The short answer is Yes Chris... in fact that's the scope Nick Howes originally used to do his mod.  The f/10 bit comes from the fact that the collimation lenses at the front (and back) of the etalon are set to f/10 therefore require near parallel light from an f/10 donor scope (appropriately placed in the light cone) but an f-setting either side will work fine !!

You can get the 90mm ERF from Baader (Telescope services sell them http://www.teleskop-express.de/shop/product_info.php/info/p3246_Baader-D-ERF-90mm-Energy-Rejection-Filter---Solar-Observation.html)

S.

[ChrisLX200]

Thanks Simon, I shall delve deeper into this project!

ChrisH