Small Reflector

I'm starting to think about getting a small (4-6") Newtonian on a decent equatorial mount, specifically for solar imaging. I'm thinking something in the F/4-F/5 range. Any suggestions on something decent, with a fairly decent mount? I'm not looking expensive, but I want something that, when aligned decently, will keep the sun in the field long enough for a 40-60 second webcam image.

Even a small refractor (60-80mm) might well do the job too.

I'd LOVE a Coronado setup, but can't afford that any time soon.

Thanks!!
Paul Maxson

Not quite sure why you want the fast focal ratio for shooting the sun but since you do, you might consider the Orion Space Probe 130ST. 130mm F5 with a Parabolic mirror. I have one and I have done some CCD imaging with it that I have been happy with.

Not sure about the mount though, I am using an EQ-3 mount, the scope is normally mounted on an EQ-2 mount.

My thinking would be a C-5 or ETX-125, that longer focal length will give you higher magnifications, of course, you might be running into FOV problems with your webcam. I normally use a C-5 with a digital camera Afocally to do sun shots.

jon

Jon

Hello there Paul,

If I maybe so bold then to suggest an 85mm TV-85, so light, so well built, so portable! And if you're already thinking of an EQ mount, why not also consider the RA axis drive which I've found will keep the Sun in the FOV for quite a very long time (this is how I use my TV-102 with the Baader solar filter on driven my SP mount). A small EQ mount will hold the TV-85 very well. And as your ambition has already suggested ;-), the Coronado filter may come in handy for this later on (I certainly drooled everytime I look through one ;-).

Ron B[ee]