confused

[sam mayo]

on the spec for the 250px its says dslr =

• Magnifications (with Eyepieces supplied): x48 & x120
  
• Eyepieces Supplied (1.25"): 10mm & 25mm
  
• Highest Practical Power (Potential): x508
  
• Diameter of Primary Mirror: 254mm
  
• Telescope Focal Length: 1200mm (f/4.7)
  
• Dual-Fit 1.25"/2" Crayford Focuser
  
• Parabolic Primary Mirror (Pyrex Glass)
  
• Diffraction Limited Optics
  
• 0.5mm Ultra-Thin Secondary Mirror Supports
  
• 9x50 Finderscope
  
• Direct SLR Camera Connection!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  
• Wooden Alt-Azimuth Mount with Accessory Tray
  
• 56% more Light Gathering than 200mm
  

i cant find it on mine or dont no what it is any 1 who know id appreciate the knowledge thanks sam

[Kai]

What cant you find ?

[bigrbuk]

What cant you find ?

The one with all the exclamation marks I imagine

...Direct DSLR Camera connection

[Cornelius Varley]

The direct slr connection is part of the focuser adapter. If you watch the video in this thread you should be able to understand how the camera is attached http://stargazerslounge.com/topic/158398-200pds-sony-nex-3/

Peter

[valleyman]

You will need a T adaptor ring for the make of your dslr and a nose piece.

They screw together and then the nose piece goes in the hole where the EP uselly goes, you will then need to adjust the focus on the telescope to get a picture.

Handy if you have Live View on the camera

http://www.firstlightoptics.com/adaptors/t-rings.html

http://www.firstlightoptics.com/adaptors/low-profile-125-nosepiece-c-threads.html

there here

[Cornelius Varley]

You will need a T adaptor ring for the make of your dslr and a nose piece.

They screw together and then the nose piece goes in the hole where the EP uselly goes, you will then need to adjust the focus on the telescope to get a picture.

Handy if you have Live View on the camera

http://www.firstligh...rs/t-rings.html

http://www.firstligh...-c-threads.html

there here

The nosepiece isn't required because the t-adapter can swrew into the focuser adapter directly. The video explains this.

Peter

[Tinker1947]

The Dob type scope it not up to much when used for Astro P, you might get away with a web cam for the Moon and Planets, but DSO's will not really work.....

[sam mayo]

thanks for the reply makes sense now,astromat does some really great imaging with the 250px,im not thinking about it for a while got lots to observe first it was just bugging me that i didn't no what it was.could i use just a web cam to get some basics of the moon?

thanks for the replys

[sologuitarist61]

The focuser adapter has a T thread on it - get a T ring for your camera and hey presto!

[brantuk]

Does astromat have his 250px on an equatorial or dobsonian mount? Would make a big difference if he does. If he has a dob then check if it's a manual or motorised one - they even come with goto nowadays. He might get a few "shorter" exposures on dso's using a tracking dob - but nothing more than 20-30 secs or so without star trailing

[RikM]

It is not easy to get even webcam shots of the moon with the manual 250PX Dob. You would need one of the GoTo or Auto Flextube models for that or to get pictures of deep sky objects you would need to mount the OTA (Optical Tube Assembly = the telescope bit) on a heavy duty equatorial mount like an NEQ6 or maybe something even bigger. That's what I do with mine.

[Scott]

just wondering rik, do you park your car inside that thing on rainy days?

Scott

[daz]

Nothing like a grab-and-go

[theodoros1978]

Does astromat have his 250px on an equatorial or dobsonian mount? Would make a big difference if he does. If he has a dob then check if it's a manual or motorised one - they even come with goto nowadays. He might get a few "shorter" exposures on dso's using a tracking dob - but nothing more than 20-30 secs or so without star trailing

I use my 250px Dob in goto AZ base and take acceptable pictures up to 45secs.

You can see some AP with 250px on my Flickr account /lovemydob

The skywatcher dobs are great series for many uses

[brantuk]

45 secs is good without star trails