EOS300D Image

[Rocket Pooch]

Hi,

Tried out the 300D for 10 mins last night, this is a single 30second shot at ISO400 using the LX90 at prime of M13, image quality was medium course.



I did do a colour replace in photoshop to remove some Orange because I did not use any LPR filter.

[JohnP]

Hi Chris - You Chuffed then? - Looks like focus was spot on - Was this enlarged at all or is it just a crop from the original - The 300D is a great Camera - Now I have my goto mount I hope to be throwing down some challenges to you & Paul.......

[Ian]

very nice, excellent focus. Hmm, challenges you say...

[Rocket Pooch]

Hi,

That's it no cropping thats it at prime on the LX90. focusing was by MK1 eyeball no stacking etc.

Ian, the challenge relates to John and I having the same camera and he has a better mount, so we're going to see who can get the best picture using a canon lens, you up for it, a beer is in the offing

[JohnP]

Hi Ian,

Sorry should have included you, Mike...etc. in fact anyone in the group that images - I was thinking along the lines of picking an object (perhaps a Messier..?) & then seeing who could produce best image in a certain month - Perhaps we could even get the Society to vote during the monthly meeting & then choose the image for the following month - It might ecourage people to be more active with their imaging.... I'm sure we would all learn something.

Perhaps something to discuss - John

[JohnP]

Chris - I question whether a £500 LXD75 Mount & 6 Inch Newt is better than a £1500 LX90 (telescope & Mount) - I'm still trying to get the Goto to work with any sort of accuracy....?

[Rocket Pooch]

best do it this week, looks like there's going to be a few clear skies.

[Ian]

I'm going to struggle fixing a Canon lens to my Nikon... Would it be OK if I join in but drink a different brand of beer (inferior of course )?

But, I'm going out there again one of these nights and the just after some simple old observing and relearning sky (I've forgotten just about everything I knew a year ago ) I'm going to piggyback the D70 on the scope and see what happens. Then all being well I might sort out a t-ring and go for some prime focus stuff.

[Rocket Pooch]

Oy John, the 8" SCT version of the LXD75 is more expensive than the LX90, well at least what I paid for my old model, so you should have the upper hand.

[JohnP]

yeah - yeah - yeah .......

[Rocket Pooch]

And my dad's bigger than yours.

[Mike]

So am I presuming right that Chris has took the plunge and also bought a DSLR ?

[Rocket Pooch]

Its was either that or a SAC10 :smile:and the EOS was cheaper.  Also I can use it for the other photography I do, and my other half can use it etc etc.

Basically YES!

[Whitters]

Superb image Chris, lovely pin sharp stars.

[Mike]

Chris - have you worked out what the field of view is on that M13 image?

John - do you get the same FOV with the LXD75 ?

[JohnP]

Hi Mike,

FOV of LXD75 will be a lot larger - I have the 6-inch Newt Reflector which has a focal length of only about 760mm Verses 2000mm on Chris's LX90.

I have had LXD75 for 6 weeks now & still haven't got it to successfully GOTO 'anything' it's been a nightmare...Chris knows the 'Ins & Outs' but suffice to say if it doesn't work the next time I take it out it's going back...! I bought it because I thought it would be easy to find all those faint fuzzies... ha!

[Mike]

Does it get close to the object if you just do a rough polar alignment?

[Rocket Pooch]

don't ask Mike, I think john got the lemon of the bunch, but hopefully it will be ok now.  anyway that M13 was at prime on the LX90, I have tried the 80:F5 with the eos and to be honest the number of pixels and the actual sky coverage shows the edge distortion on the optics of the telescope, this did not appear on the LX90.  I've yet to fully try the EOS LX90 combo yet because I'm in India and also because the observitory is getting build this month but when its complete I'll be giving it a good old go with autoguiding etc.

I think for wide fields images the EOS is going to be great and for M31, M101 etc, for things like the Owl Nubula or other small objects then I'll use the SAC, having said that I've been reading about, learning and playing with IRIS and talking to the IRIS yahoo group and there's some excellent stuff you can do with the EOS and Canon digital camera way ahead of what I'll get with the SAC and focal reducers.  when I've done the homework I'll do an article in TOAST on these image processing techniques, but it will take a little while to do.

BTW, if its clear I will bring the LX to your place so you can play, just give me a call.

Chris

[Mike]

Chris,

Yeah a session at my place would be good. A Friday or Saturday night late one if your up for it - maybe a few others can join in?

I would like to see exactly what the FOV is using my Nikon (should be almost identical to the Canon) on the LX90 as well as the ED80 to give me an idea what kind of F ratio scope to go for (high I reckon as the FOV seems to be huge). Although it is a lot of money, I do like the look of the new 10" Meade RCX400 as you wouldn't need to buy any accessories for the scope with it being all inclusive.

I am on holiday in Cheshire for two weeks so i'll contact you when I get back.

[ This Message was edited by: Mike on 2005-06-02 10:17 ]