Posts Made By: David Faatz

Glenn,

My apologies for the error in my last posting. My Swarovskis were 8.5x42, not the 8.5x44 listed.

David

Hi,

Does anyone have any information about the new, and I would guess, improved Fujinons. I've gotten the impression that the body has been modified. I wonder if that means the SX2 model is not built to mil spec. I understand that the coatings have been improved.

Can someone compare the SX to the new SX2? Also, when will the 7x50s and 16x70s be available?

Many thanks for your help.

David

Markus,

Would you help me understand the difference between a Fluorite and an SD objective? I am sure it is quite simple; nonetheless, it is a mystery to me. As your table indicates, the 80mm objectives are Fluorite, but the others are SD. The real question, "Is there a difference in quality of image and contrast between the two types?"

TMB 80 f/6 triplet Fluorite
TMB 80 f/7.5 triplet Fluorite
TMB 4" f/8 triplet SD
TMB 4.1" f/6.2 triplet SD
TMB 4.5" f/7 Triplet SD
TMB 175 f/8 triplet SD
TMB 8" f/9 triplet SD
TMB 9" f/9 triplet SD
TMB 10" f/9 triplet SD

Many thanks,
David

Hi, All.

First time contributor.

Enjoyed all your erudite conversations.

I am sure this has been discussed extensively but would like to ask the question once again.

What mirror size would you choose if you wanted something larger than 6" but less than 36" and would be reasonably portable?

Tough question, I know. It seems like 8" is too small and 18" is too large, depending on one's requirements. Is there a scope of a particular mirror size that would be considered something like a sweet-spot?

Thanks for your help.

Regards,
David

PS. I have one more question: Has anyone compared the image of a refractor to a reflector to determine what size refractor compares favorably with that of a reflector. For example, do you need a 10" reflector to get the same views as a 6" refractor. Just mighty curious. Again, thanks. Ciao.