Ok, I bought myself an RCX400 and I am thinking that I might use it to do all my narrow band work in the city and then combine that data with the colour data from Clayton. So with that in mind I need the answer to a couple of questions.
1. Does the RCX400 series require a flattener to correct for field curvature. I can find nothing on the Meade site about the requirement to have a flattener.
2. If it does need one, which one do I get and does Meade make a dedicated one for these scopes?
No, doesnt need a flattner.
However, a reducer, is another story. When i had my 14" RCX, i had a reducer to bring it to f5.5 from f8.
It did slightly introduce field curvature due to the fact the RCX's flat field.
Makes a big difference in exposure an image size/area.
Hi Paul,
I am using an Optec F7 reducer only with my LX200R. Sirius Optcs (where I work) stocks them. They are ideal for this type of telescope.
PeterM.
Paul I would try out any Tak reducer you already have. Chances are it will work and have a larger corrected image circle than other types (apart from the AP ones). You'll just need an adapter to find out.
I used an FS102 F6 reducer on a 12.5 inch RCOS and it worked quite well (a bit of curvature in the outer 1/4 of the image thoug).
I don't have a reducer Greg. I just have the flattener which of course cannot be used with the scope as the field is already flat. I might have to invest in a Tak reducer though as I would like to image some more wider objects.
