Monday, January 26, 2009

Green Bruises On Knuckle And Finger

SkyWatcher Ed120 Black Diamond

Currently the largest of the range is the new ED Skywatcher 120ED Black Diamond according to the plans of the house is a Chinese-all tool that allows the observation and recovery of all items astronomical.

Construction

The instrument is now with a beautiful color, the main body glossy black, white focuser and lens hood for a better overall visual effect.
optics consists of a doublet made FLP53 glass (Schott glass) that according to the Chinese house can get a very clean and free of color. Also according to the software is always highly recommended for those CCD produces images.
The Skywatcher ED120 has a focal length of 900mm with a focal ratio of f then 7.5 and comes with a kit Crayford focuser 2 "reduction to 1 / 10 and precise movements.
The 9x50 finder has provided the quick and very easy to align thanks to the telescope control system in the spring.
Included are a diagonal dielectric mirror from 50.8 mm to 31.8 mm with reducer and 28mm eyepiece from 50.8 in the series LET.
rings and dovetail bar make it ready to be installed on all frames mount Vixen type dovetail.
Finally everything is put away in a stylish aluminum case.
The beautiful bag provided.
On Field

I was able, until now, to try my new instrument in about three evenings in conditions very different in every situation .. but I just got real emotions . In
average seeing conditions, about 5 / 10, tool gave me permission to see the major problems without deep-sky objects of this period without any problems .. M42 was great, with wonderful details and a beautiful light green shade, climbing with the enlargements are then able to observe the stars of harness inside risen dramatically ..
M44 was spectacular, as well as M46 and M47
... I was able to make observations of Saturn and is also already included with the eyepiece, a good 2 inches by 28 mm, you could see the rings of perfectly cut and you could see different gradients on the surface of the planet ... The tool then calmly held up the 257 magnifications showing perfectly on Saturn some of the bands on the surface of Saturn. The Moon
tool offers true emotions, I have observed no problems in the crater Plato defined a number of small craters.
Finally I did a little star ... The test result was very good with perfect records Arry sign of perspective perfectly collimated
... I want to point out that the standard equipment is very high level, a truly wonderful diagonal, dielectric worked lambda 1 / 10 that nn has nothing to envy from other much more expensive, then the finder is very good because it is a 8x50 for ease of adjustment.

Conclusions
what to say, a truly wonderful instrument, which has a value for money unbeatable ... I would advise anyone looking for a good apo refractor for photography, nn be disappointed ... the only thing that I would suggest that even if the focuser is only very good beat, and then spending the next could be the Baader focuser that would make the perfect tool.
The interior of the suitcase.
The fine diagonal dielectric dotazioe by 50.8 mm
The finder and the eyepiece adapter.
All assembled on my Orion EQ-G

Thursday, January 8, 2009

Share Sale Contract Sample

Coronado PST

The Coronado is a famous manufacturer of optical filters and instruments for solar observation. The
PST Personal Solar Telescope, is a small / low-cost large telescope for observing the sun in the band Hydrogen - alpha. The PST is therefore h-alpha solar telescope with a bandwidth of less than 1 Angstrom for observations of the Sun, proposed at the lowest cost category.

The lens has a focal length of 400mm with a clear opening of 40 mm. Operating Wavelength 656.3 nm (H-alpha). The mechanism of optical
fuocheggiatura is internal and provides full compatibility with the majority of eyes. Seeker built-in solar
E 'also features a standard camera tripod thread.

The body of the telescope has no moving external parts. The target cell is threaded to accept a SolarMax40 and create a telescope with a band on the field <0.6A.



I've tested the PST only in winter days, for now, but I must say that I was just amazed ease of focus and the images that gives in an instant.
in seconds thanks to the fact finder you can put the sun in the center of the eyepiece and start viewing. The system fuocheggiatura seemed now very good.

I gazed at the sun with different eyes, even with a 20mm eyepiece it was possible to distinguish the surface roughness, by rotating the filter to change the bandwidth, I immediately saw several bumps. By increasing the magnification of the protrusions are made clear as well as the roughness of the surface.



Conclusions There is little to say, really a great tool that I would recommended for all those who want to see the wonders of our stella.Un real killer tool, with which you can also make excellent solar images ... ..