Focal Reducer question
Posted 07 December 2012 - 06:50 PM
i was wondering if anyone has a better one they reccomend for around the same price.
also im looking into buying this Light pollution filter
so if i install these 2 will i loose much or any detail on my pictures? or will it make them better? (i also own a neximage 5)
Posted 09 December 2012 - 12:10 PM
From my experience the reducer makes your scope faster (i.e. takes pictures in less time) and gives a wider field of view, as you would expect, and I find it very useful.
Also from my experience the light filter is a little like wearing sun glasses at night. It makes everything darker so your exposure times go up. Other than that I never noticed that I liked my pictures any better. Any beneficial effect is too subtle for me. I no longer use a filter.
The NexImage 5 was designed to have a narrow field of view because planets are small. The only reason to use a reducer with that camera is because your tripod and mount are so bad you can never find the planet otherwise. You might use it if you want to get more of the Moon in your picture.
The Skyprodigy 6 has an alt/az mount so you need to worry about getting short exposure times to reduce rotation blur. I recommend using the f/6.3 reducer and not using any filter.
Posted 09 December 2012 - 12:31 PM
LPR filters should be used if there's well light pollution problem. It helps to cure evlil gradients produced by street lights etc.
Posted 10 December 2012 - 12:14 AM
Also, a focal reducer, will allow you to reduce exposure times, this might even allow you to take some images of brighter DSO's using your ALT-AZ mount, just keep your exposures short, you'r stars won't be perfect circles, but if the pictures make you happy, who cares?