Customer Review

3.0 out of 5 stars Convenient Scope - no finderscope hinders celestial use, 2 July 2014
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This review is from: Celestron C70 Mini Mak Spotting Scope (Electronics)
I downgraded from an old 4.5 inch reflector telescope as it has become the proverbial coat rack - it's just heavy for spontaneous use, especially with the British weather. This scope can be easily grabbed with one hand and taken onto my balcony table for a quick bit of bird watching (I am monitoring some city falcons). The image is clear at x25 but does dim at x75 with apparent loss of clarity, and it does require refocussing upon zooming. At x75 the image is not as sharp. But the zoom feature is convenient; the mount an intuitive and simple alt/azm (left-right and up-down); the image is not reversed or upsidedown - all of this pluses over areflector scope.

For star-gazing though there is a shortcoming - there is no finderscope so it can take a few moments to have it point, say, at a bright planet, even at tle lowest magnification of x25. Googling around, I found a workaround : put an empty biro into the grove on the casing and fasten with a rubber band, but it is still not adequate e.g. for binary stars. I ended up purchasing a red-dot finder and fastening with rubber bands and blue-tack and now it is perfiectly good for lunar and planetory viewing. The moon's crators are clearly visible, Saturn's rings visible, albeit its a small disk in the eyepiece, and I managed to split the smaller of the horse-and-rider binary star. The zoom eyepiece does not support standard filters so using it to look at a full moon is uncomfortable so you may want to stick your own 1.25 eyepiece in with filter.

I find the tripod just about useable; I tend to push it approximately in place (where it wobbles quite a bit) then use the fine-tune alt/azm knobs.

For photographing birds I purchased a Seben camera adaptor to take pictures using a compact camera. This does not work well because the scope is so light and the adaptor, being solid metal, is too heavy such that the scope tilts back (or I risk overtightening the knobs on the tripod). I then purchaed a celestron T-ring and DSLR adapter for my Nikon D50. This worked, and especially it achieved focus (which is a known problem with other telescopes), but it is very hard to get focus (due to focus seeming to have some mechanical lag plus image on the DSLR's focussing screen looks strangely mottled). It was more practical to hold a compact to the eyepiece.

Overall I'm happy because of the convenience of grabbing it now and again (and several times in an evening), but finderscope would have been nice. Do expect some degree of fuzziness at higher magnifications (above x30). In hindsight I think a Celestron Uitima may have been a better choice for me (80mm or better) as it has a sighting tube and thread for a DSLR; but I do enjoy using this and this is the final proof.
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Showing 1-1 of 1 posts in this discussion
Initial post: 12 Oct 2014 18:17:11 BDT
happy kat says:
I have one of these too and it does benefit from using your own choice selection of 1.25 eyepeices, the supplied Zoom does show it's weakness when replaced with a better individual higher power eyepeice.
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