Search found 1165 matches
- Sat Feb 14, 2015 1:30 pm
- Forum: Buy and Sell
- Topic: WTB Cheap Achromat 80-120mm type
- Replies: 0
- Views: 1120
WTB Cheap Achromat 80-120mm type
Hello! I'm looking for a lightweight and cheap achromat of between 80-120mm to use as a solar scope (with solar filter, of course!) As a price point I'm thinking of maybe 100-150ish for the 80mm and of course more for the larger apertures. I'm not fussy as long as the optics are fine and the mechani...
- Fri Feb 13, 2015 11:51 am
- Forum: Equipment Discussions
- Topic: First Nikon D810A review
- Replies: 5
- Views: 7845
Re: Nikon D810a DSLR for astrophotography officially announc
That's really interesting except that it costs almost $1000 more than the base price! The "normal" D810 is about USD3K at retail. Which begs the question if its a better idea to buy a "normal" camera and then spend the top up for a dedicated CCD that has cooling, which drasticall...
- Tue Dec 16, 2014 11:04 am
- Forum: Buy and Sell
- Topic: Checking Interest: Skywatcher 130p Table Top Dobsonian $250
- Replies: 3
- Views: 4124
Checking Interest: Skywatcher 130p Table Top Dobsonian $250
Wife is badgering me to clear space, especially telescopes which take up a lot of volume and are barely used. I'm thinking of selling my Skywatcher Heritage 130p Dob ( http://store.mcgill.com.sg/index.php?id_product=9&controller=product ) Its been barely used since I refurbished it: The original...
- Sat Nov 08, 2014 12:05 pm
- Forum: Buy and Sell
- Topic: Deal Alert - Meade 9mm Illum. reticle
- Replies: 0
- Views: 1846
Deal Alert - Meade 9mm Illum. reticle
https://www.astronomics.com/meade-9mm-1-25-inch-plossl-illuminated-reticle-eyepiece-cord_p3863.aspx If anyone is looking for an illuminated reticle EP this is one of the cheaper deals. Only problem is that you'll either need a Meade mount to power the illuminator or you'll need to re-solder the wire...
- Tue Nov 04, 2014 11:49 pm
- Forum: Astrophotography
- Topic: Orion Widefield with DSLR and Lens
- Replies: 5
- Views: 3393
Orion Widefield with DSLR and Lens
Here's my humble contribution :) Its been a long time since I shot anything due to time constraints but on a recent holiday at a farmstay in Australia, I managed to sneak in a few shots with an unmodified DSLR and a 70mm lens at f3.2. Subs of 1-2 mins each and total integration time of about 1 hr. S...
- Tue Oct 21, 2014 10:49 am
- Forum: Beginners Forums
- Topic: What kind of AZ mount fits my C5
- Replies: 7
- Views: 8957
Re: What kind of AZ mount fits my C5
Hello and welcome! C5 is a reasonably light scope and many Goto Alt-az mounts will handle the C5, although it'll be at the limit for some of the lighter duty ones. Celestron's own Nexstar mounts are reasonable alternatives and I personally use a 5' Mak (similar but heavier than your C5) on a Skyprod...
- Sun Sep 07, 2014 1:36 pm
- Forum: Beginners Forums
- Topic: Dovetail bar, why do we need it?
- Replies: 5
- Views: 7844
Re: Dovetail bar, why do we need it?
Essentially dovetail bars are a universal means of convenient quick attach and release, with the ability to balance the scope. Without them, each telescope must be manufactured to fit a particular mount, which is much like saying each camera has its own specific model of tripod. Yes you can attach y...
- Mon Aug 25, 2014 12:28 pm
- Forum: Buy and Sell
- Topic: WTB: Vixen Dovetail
- Replies: 1
- Views: 1180
Re: WTB: Vixen Dovetail
Found with thanks!
- Mon Aug 25, 2014 10:53 am
- Forum: Buy and Sell
- Topic: WTB: Vixen Dovetail
- Replies: 1
- Views: 1180
WTB: Vixen Dovetail
Hello! I'm looking for a vixen style dovetail, preferably short. If you have one to sell, I'll be quite happy to buy it for a reasonable price.
Thanks!
Thanks!
- Mon Aug 25, 2014 12:23 am
- Forum: Beginners Forums
- Topic: Newbie here
- Replies: 18
- Views: 18861
Re: Newbie here
APS-C has an image diagonal of about 30mm so an imaging circle of 45mm will fill it just fine. Having said that, light flats are always useful because there will be some degree of vignetting. Even if this is mild, it will make the center of your photo look hazier than it needs to be as the stacking ...