Dean

Hi

I have nearly finished referbishing a telescope that my father built 33 years ago.

Can anyone tell me how i can measure its focal length?

Thanks Dean

Thanks for all your ideas. I have plenty of there to go away and play with.

Thanks Dean

I did that with my 8" F5 scope - had issues getting a dSLR to focus.

I needeed about 2 or 3 mm of in focus, using the collimation screws I only had about 5mm of "up" movement available - it makes collimation harder IMO.

It'll be better to get a low profile focuser?

Ant

Thanks James/Ant

A low profile focuser was suggested to me at SGL4 but just wondered how much extra in focus i would get if i used the low profile crayford focuser below?

Skywatcher

Thanks Dean

Hi i have a skyliner 300p and understand that the primary mirror is to far from the secondary mirror to be able to use for prime focus imaging.

Just wondered if anybody has found a way of overcoming this problem?

Thanks Dean

Hi and welcome from Dean just outside bath

I will be there for both nights this time so i can spend more time in the day meeting more of you this time.

Dean

Nice pictures Neil

Dean

Thanks Astro_Baby your guide looks like it will help me to.

Thanks Dean

Thanks Alex and john for the grest views through your scopes on the saturday, had a look last night at M51 through my 12" at home and not a touch on the views we had at SGL4.

Dean

I would like to give a big thank you to organizers of SGL4. I thought the site was great and would definitely want to go back if another one held there next year. I would also like to thank everyone I met for being so friendly. I had a great views on Saturday of M51 through Alex’s 12” Dob and of M13 through Robs 14”LX200.

Thanks everyone Dean

The constellation of Orion has always been my favorite object. It was the first constellation I was able to recognize as a child. I used to watch it pass my window at home as I fell asleep. I now always find it a comforting object if I’m in a foreign country along way from home.

Hi Kai I have sent you a PM regarding the pitch

Dean

Hi Steve and John i will take the night you do not want and pay the other half if it is still avalible

Dean

Thanks Steve and Sam for your posts you have given my something that i can look into this week. I am in the middle of building a observatory and have not got the money to buy a new mount for a while so your posts have been very helpful.

Thanks again Dean

Hi i would like to start using a autoguider with my setup and understand that i need a ST4 guiding port. My mount is a EQ-5 Deluxe with a duel axis dc motor drive. Can anyone tell me if i have a ST4 guiding port?

Here is a picture of my set up.

Thanks Dean

Thanks for that Mike i just need to make sure my mount has a ST4 guiding port.

Dean

Hi im using a EQ-5 Deluxe with duel drives at the moment and am thinking of buying a opticstar AG-130M auto guider. I have a laptop with vista. Is that all i will need top be able to auto guide?

Thanks Dean

Thanks Peter i have just noticed the apply settings to saved picture option

Thanks guys thats sorted it i can now open them up in photoshop.

Just one more quick question does any processing done in DSS get saved with the image?

Hi im getting a message pop up when i try to open my image in photoshop.

Any ideas?

could not open autosave.tif"because the TIFF file uses an unsupported bit depth

Hi i have just stacked some images in DSS and want to know how to save it in a format that can be prosessed in photoshop?

Thanks Dean

Thanks both posts have been very helpful.

Dean

Hi i think my scope has survived the fall anyway i have been out tonight and have taken this image of M81 and M82. Can any one suggest how i can improve it?

I have a canon 350d and a Equinox 80

Image was taken at ISO 400 for 200 secs

Thanks Dean

Thanks for that Tony.

Hi i would like to do a star test with my Equinox 80 to check for any damage after it fell out of its mount. Can anybody give me advise on how i go about doing this ?

Thanks Dean