Your Focal Length Spread?

[glend (Glen)]

In another thread, PW set out his telescopes by focal length, covering a pretty wide range, and providing wide field to narrow field imaging. Here is what Peter shared:

"So in order of focal length my current ensemble is: FSQ85, FSQ106, AP130GTX, AP155, AP RH 305, Alluna RC16. They all bring something different." My apologies Peter if you din't want this mentioned here just let me know and i will delete it.

Just curious as to how others setup their equipment assets to achieve a range of focal length capabilities, and what drives the decision, other than a desire for a choice of field size and magnitude to suit?

[Marke (Mark)]

80 , 102 , 250 plus minus 0.67 focal reducer. Then look up object in either SkyX or CCDcalc and compare the projected fov with the object size and use what best fits.

[Peter Ward]

Originally Posted by glend

In another thread, PW set out his telescopes by focal length, covering a pretty wide range, and providing wide field to narrow field imaging. Here is what Peter shared:

"So in order of focal length my current ensemble is: FSQ85, FSQ106, AP130GTX, AP155, AP RH 305, Alluna RC16. They all bring something different." My apologies Peter if you din't want this mentioned here just let me know and i will delete it.

Just curious as to how others setup their equipment assets to achieve a range of focal length capabilities, and what drives the decision, other than a desire for a choice of field size and magnitude to suit?

...infamy!

Actually when I include camera lenses and barlows the range goes from 4.5mm to about 13.2 metres.... one has to be versatile