Blaired79

@Elp I spotted clear skies tonight so ran out and setup. With a 100mm focal length I managed to successfully polar align. The ASI eventually corrected the focal length to 97mm. I was so happy. Thanks to all for their help on this topic!

@Elp I can’t recall. I was also fighting against a misted lens too but I have a lens heater to hopefully solve this. The next cloud free night for me is Sunday, I’ll try a few lengths and share the previews here. Thank you!

@MalcolmP Last night it found more 900 + which I thought hurrah but the FOV was over the max threshold. At that stage of the evening I was still at a loss to how to fix it. I'm hoping to with a higher focal length I'll get there. Thanks for the tip on the website, I'll be sure to give that a go.

OK I think the penny is finally dropping here and as you can probably all tell, I am completely new to new and don't have a clue (running before I can walk) My understanding is that the FOV is too large on the current focal length I was using between 18mm and 55mm. The ASIAIR needs a minimum FOV of 0.2° x 0.2° and maximum FOV of 33° x 33° to be able to plate solve. I used the Canon calculator and if my focal length is 100 mm or more I should be OK......

Plate solving fails, it keeps trying but always fails. I’ve given up for tonight as the lens is misting up but I have a dew heater arriving tomorrow which I hope will do the trick. I’ll try solving again tomorrow and take some screen shots.

18mm at 3.5

Thanks I’ll try this tonight. I think I recall seeing the f value on the dslr as being really high despite having initially set it to 5.6. From memory it was finding 32 stars. ISO set at 800, I did tinker with the exposures from 5 seconds to 1000

Am I right in thinking that my focal length will be determined by my lense I attach? For example I have one lens that can range from 18 to 55mm

Don’t laugh but I think so. I’ve put the mount due north and set the latitude to my location. I had the focal length set to 0 and after some research I found that it shouldn’t matter too much but after looking up this I can set this now.

Hi all, I'm looking for any advice or guidance for the following. am really new to Astrophotography and to help make it easier I have bought ASIair Plus and Sky Watcher Sky Adventurer GTi. Last night was my first attempt to Polar Align. I get this error Warning: FOV out of range (0.2°-33°) This image may not be solved (screenshot attached) I've read some posts that mention that certain cameras aren't suitable for PA, I've seen mentions around the degrees... I have a Canon EOS 450D and I'm not sure where to find out this information. Any help would be greatly appreciated. Mike