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Solar eruption sent on 04 Giugno 2017 (21:46) by Massimo Busato. 11 comments, 756 views.

fotografia scattata co rifrattore 152 x900, diagonale , barlow 5 x, filtro HA Dystar ion da 0,6 A , camera asi 178 , 1000 fotogrammi elaborazione co ps6

21 persons like it: Albertopantellini, Alessandro1124, Andesigno, Andrea Tura, Beppe Reda, Fabio Vegetti, Fra155, Giorgioastro, LucaCremonini, Mar-cello, MarsCr, Marzio Bambini, Matley Siena, Mauro66, Paoloeffe, Roberto1977, Slashleo, Stebiscio, Sunblack, Thule, Zipablo

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LucaCremonini

sent on 04 Giugno 2017 (22:47) | This comment has been automatically translated (show/hide original)

But but ... is the sun?

Massimo Busato

sent on 04 Giugno 2017 (23:13) | This comment has been automatically translated (show/hide original)

It is an eruption on the sun

Dumler

sent on 05 Giugno 2017 (23:50) | This comment has been automatically translated (show/hide original)

But do you have Hubble at home? Wow congratulations

Massimo Busato

sent on 06 Giugno 2017 (18:21) | This comment has been automatically translated (show/hide original)

I have a simple 152 x 900 telescope that between the barlow and camera sensor arrives at almost 10000 focal af 30

Pierpaolod

sent on 07 Giugno 2017 (12:56) | This comment has been automatically translated (show/hide original)

Great photos. What are the barlows?

Fabioviti

sent on 07 Giugno 2017 (19:00) | This comment has been automatically translated (show/hide original)

The Barlow, or rather the Barlow lenses, are simply focal multipliers. The name "Barlow lens" comes from the name of the inventor of the optical pattern used for this type of telescope accessories.
There are definitely 2X and 3x, respectively duplicator and tripling focal ... I do not know if there are any other focal length stretching factors .... the most commonly used is anyway the 2X .... going too is a risk of loss Of brightness too important for both observation and photography (apart from the solar one) and too much deterioration of image quality.

Massimo Busato

sent on 07 Giugno 2017 (22:01) | This comment has been automatically translated (show/hide original)

There are also 4x barlow with 50mm barrel and 5x barlow which is what I used,
Which gives me a focal length of 4500 mm, then I have to calculate the sensor multiplier of the room which is about 2x.
Quality also by the goodness of the H-ALPHAche filter is used the more the band is tighter
Sharpness you have, this filter I used is 0.6 A, but there are even more performance with a bandwidth of 0.3 A which is the highest in sharpness and contrast.

Fabioviti

sent on 08 Giugno 2017 (10:09) | This comment has been automatically translated (show/hide original)

Thanks for the info Massimo ... I was not aware of the characteristics of the solar filters that you pointed out to Barlow's existence so thrust.

Pierpaolod

sent on 08 Giugno 2017 (16:32) | This comment has been automatically translated (show/hide original)

thank you. Very exhaustive

Stebiscio

sent on 09 Giugno 2017 (15:08) | This comment has been translated

Wow!

Andrea Tura

sent on 11 Giugno 2017 (15:57) | This comment has been automatically translated (show/hide original)

Congratulations, Suggestive! :-or

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