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Rod Lutterworth

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Everything posted by Rod Lutterworth

  1. Hi guys. Thank you all for your comments. Here is a bit more info on what I have and am trying to do: I have now made a "static test" whereby I set my location to 90'N and then monitored the position of the axes as the drive tracked at sidereal rate. The AZ axis tracked at the required 0.25'/min and there was no movement of the alt axis. This was seen regardless of the alt axis position. The mount came along with the skymax 127 Maksutov. I got them second hand but it is the same as this one: https://www.harrisontelescopes.co.uk/acatalog/SkyWatcher-Skymax-127-SynScan-AZ-GOTO-Telescope.html?gclid=CKPx942pqdICFUq17QodKBEEng I really want to use the mount for wide field imaging with s DSLR. I recently made a "barn door" mount but driving it by hand is a hassle and so I was wondering if the synscan could be used in EQ mode to reduce field rotation. It may be that for the lenses I am using and the relatively short exposure times that field rotation won't be an issue, but now I have a "bee in my bonnet" about this and it has become a bit of a "mission" for me just to see what may be possible with the equipment I have. I am grateful to Philip R for his suggestion to try and adjust the legs of the tripod to set the "wedge" angle and may give that a go before starting to build a conventional wedge from scratch. You are also right that the "bowl" is full of "grubbins" which will make the secure mounting of the drive to a wedge more challenging. All I need needed now is some decent weather !!! Having said that it's actually a good time to be making things in anticipation of better sky's to come along eventually. Rod
  2. Hi there, my first post so please be gentle!! I have a skywatcher synscan goto AZ mount and have been trying to find out if it is possible to use this on a wedge and effectively convert it into an EQ system for better imaging and to eliminate the problem of field rotation in long exposures. Up to now I didn't find anything positive on this but have been giving it some thought and want to ask for comments on my idea. I was thinking that if you set up the observing site in the controller handset to be at 90'N then all visible objects are circumpolar and therefore when tracking at siderial rate only the azimuth axis will rotate. If the mount is then fitted to a correctly set up and aligned wedge it should track as an EQ system. Obviously the goto function will not work but you should still be able to use the alt and az axes to point to objects. I suspect I may be missing something obvious, and perhaps someone else has already thought about or tried this. If it is not going to work it would be nice to know and would save me going to the trouble of constructing a wedge. Thanks in advance for comments/suggestions. Rod
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