Alien 13

You would think that after 80 years of launches they could now just hit a big red button and go, after all its not rocket science 😋

Alan

1 minute ago, JamesF said:

Yeah, I'm thinking it's not looking too hopeful.

James

Its exciting though in a strange way..

Alan

Cant find any links...

Alan

I doubt mono cameras will exist in 10 years time perhaps less..

Alan

You could argue just using a 50mm lens or similar on your camera and enjoy the ambience..

Alan

I personally would go for the 72ED, because there might be more going on around the Sun especially if there is a bit of drifting cloud etc..

Have a go with the Moon (same apparent size as the Sun) with both scopes to see if any detail loss is realy significant.

Alan

7 minutes ago, powerlord said:

I have to disagree with you there - as you say yourself in the final sentence. Once it's PAed it is, fair enough - but PAing is hard enough in ASIAIR without me having to worry about ALT offset changing when I change the AZ offset. The closer I can get it before I start, the quicker my PAing will be - especially as my old EQ5 is a bit rough with ALT in the first place. It's a heck of a lot  easier if the two can be corrected independently imho. Standing there for 20+ mins fannying around trying to get it PAed is not my idea of fun. Anything that can make that quicker I'd gladly do.

However, see above - the glaringly obvious sitting the phone on the tray will be my goto next time - embarresssed I never thought og that - I'll been trying to sit in on a square corner of the mount... sheesh.

stu

What makes you think the tray is anywhere near level  with the tripod/head😋

Alan

7 minutes ago, Dr_Ju_ju said:

Why must the tripod be perfectly level ??  as long as it close, good polar alignment will take care of any 'inaccuracies'...

It is probably not so important for AP but us photographers do want absolute accuracy and having a spirit level at 6 foot is no use to someone 5 foot 6 inches tall...

Alan

I do need a solution for this too, most mobile phones are useless for this as they have "curvy" backs....

Alan

I too have the Spyder 5 but cant imagine that there is that much difference, I would check that the intel or other graphics settings are set to defaults before calibrating. 

Alan

You can get 5V dew heaters that will run off a mobile phone power bank but they are only suitable for camera lenses/small scopes. I use one of these and it will fit my 90mm Mak as well as my lenses.

Alan

I have recently bought a load of camera gear, tripods/heads/cages etc even though I know I will never step out of the house for a very long time..

Alan

Just now, DaveS said:

Well OK, but what was it's poly Strehl?

It does indicate that most scopes throw 90% or more of the light gathered away..

Alan

1 minute ago, Paul M said:

Oops missed that one a 10cm sensor is big..

Alan

2 minutes ago, DaveS said:

Well that's effectively eyepiece projection, not prime focus imaging.

No it was just the objective lens, remember those vintage plate cameras with a very large sensitized glass plate at the rear...

Alan

31 minutes ago, Paul M said:

I wonder what kind of optical system could adequately illuminate a 4.2" sensor?

And would my EQ6 Pro be ok?

Dont you mean 2,4 inches, which to me is tiny..

Alan

7 hours ago, DaveS said:

A bit small? 50 x 40 mm or even 60 x 60 mm? How big do you want?

Actually gigabit ethernet would be a better option than USB3 Thunderbolt is just too flakey for scientific cameras.

I was thinking a pro camera would want a pro scope which probably has a much larger imaging circle than 60mm, even my old bino objective can project an image a foot across although its in no way corrected.

Alan

Nice but chips are a bit small and would want USB-C/Thunderbolt connectors rather than USB-3 for that money 🙂

Alan

Not for me, I dont even go outside anymore although have spent loads on other stuff.

Alan

Nice result, I do find it amusing when people say astro photography is expensive, like you mentioned video is a league above, same with audio kit..

Alan

14 minutes ago, johninderby said:

So when can we expect your review? 😁

I have the more expensive version, Canon WiFi controlled DSLR/ Canon Smartphone App and an L lens 😋

Alan

8 minutes ago, KP82 said:

$150 for this? Are you joking?

I can build one myself with Pi + HQ Camera + C-mount lens for less than that. And it's a lot more versatile.

Ah but what about autofocus, development of the smartphone interface and the ED glass 😀

Alan

10 minutes ago, johninderby said:

A review. Ahh maybe could be used as a finder sdope , a very poor finder scope. More a toy for smartphone users.

 

I want one....

Alan

F ratio is a funny thing, useful for determining exp settings but its never a good idea to assume that everything is equal. I could have a f/2.8 DSLR lens or a Phone camera with a f/2.8 lens and it should be obvious which one actually collects more light..

Alan

19 minutes ago, Space Oddities said:

Glad I could inspire you  Maybe I should become their influencer to earn a few bucks... 😅

Not a bad idea, do realy want that tripod too.

Alan