Member's profile Send private message Find member indlg Fj to Buddy List Newbie: April 21, 2014 Status: Offline Posts: 13 Citr Thread: mirror or lens telescope? Posted: April 21, 2014 at. 18:08
Member's profile Send private message Find member indlg Visit the member website Fj to Buddy List Groupie: February 19, 2013 Lok.: Ishj Status: Offline Posts: 151 Citr Reply Posted: April 21, 2014 at. 18:24
reflecting telescope, or reflector, will crown the crown, giving you a greater lysbning, which you certainly have much benefit at DSO (deep sky objects (often very distant and faint galaxies and star clusters)) refracting telescope, or refractor , (here lgger my head on the block) provides a longer FOCAL LENGTH at the same lysbning, thereby potentially larger forstrrelse with a given eyepiece.
Member's profile Send private message Find member indlg Fj to Buddy List Milky Way Member: October 26, 2008 Lok.: Sdr.Stenderup Status: Offline Posts: 1398 Citr Reply Posted: April 21, 2014 at. 18:39
Hi Jacob. dals lighting Please try just to solve my keeping with the newly renovated Park, which is a srdeles fine quality, and have in fact F6 often also seen on refractors. Here you can also solve bedmmelser where some are prepared to lgge their apo on the shelf! To KBE a lens telescope that can be compared, for example. this Park, it costs maybe 75-90000, -. The disadvantage of Newton, is that it takes something more - but no it only costs 10-20% of an equivalent lens telescope may be defended! dals lighting However, I have even a 102 mm. apo also that I am very happy! And then just the eternally recurring rd: Hurry up and join a resident astro association - you will be happy! Sincerely.
Member's profile Send private message Find member indlg Visit the member website Fj to Buddy List Milky Way Member: January 19, 2009 Lok.: Charlottenlund dals lighting Status: Offline Posts: 2067 Citr Reply Posted: April 21, 2014 at. 19:15
Quote: side wind mirror telescope, or reflector, will crown the crown, giving you a greater lysbning, which you certainly have much benefit by the DSO (deep sky objects (often very distant and faint galaxies and star clusters)) [ / QUOTE totally agree [QUOTE = lateral wind] refracting telescope, or refractor, (here lgger my head on the block) provides a longer FOCAL LENGTH at the same lysbning, dals lighting thereby potentially larger forstrrelse with a given eyepiece. FOCAL LENGTH and aperture hnger with f / ratio. There are refractors with larger f / ratio than reflectors and vice versa. The fastest dals lighting f ratio is generally to find by reflectors, but as a general rule, the statement is not true. The most significant practical matters are suppose to lens binoculars are easier to go to because the optics generally stuck and therefore generally not symbols does collimation and other non "service user". Lens Binoculars are also generally have better contrast because dals lighting they do not have a sekundrspejl in the light path. Lens Binoculars dals lighting are, however, generally svrere to do because the light refracts through going through glass, which produces errors, chromatic dals lighting aberration that has plagued lens binoculars from the beginning. Chromatic dals lighting aberration is due to the blue light is refracted more strongly than the scholars light, why fr a udtvret focus if there is more than one blgelngde. Chromatic aberration can handle at long f / ratio (= large depth of field - was therefore binoculars dals lighting fr 1800 meeeget long). Later, people (in 1800) out of making composite lenses of several types of glass with different farvebrydende properties (dispersion), so-called achromatic where Fraunhofer telescopes were especially famous). dals lighting Later it was discovered that the use of low dispersion glass, it came from Ernst Abbe was optician Carl Zeiss scientific partner (the brain behind the German optical industry adventure 100 years ago). These are the so-called apochromatic refractors which are expensive. A clean reflector has no color errors (eyepieces or various correctors does contain glass). For gengld have reflectors dals lighting other errors, coma and astigmatism example. In addition, the large mirrors have time to kles down and'm not spndes firmly in its sights, so you have to collimate and "cuddle" more about binoculars. Man fr who said more opening per penny than a refracting telescope, and thus fr amassed more photons, which is what all the fuss is about. Do you have a refractor that can have modest dals lighting color error becomes, as mentioned animals, but given lovely - I do not have one yourself. However, you can get far with an achromatic refractor, which visually using enough is the ideal starting telescopic side wind
Member's profile Send private message Find member indlg Visit the member website Fj to Buddy List Groupie: February 19, 2013 Lok.: Ishj Status: Offline Posts: 151 Citr Reply Posted: April 22, 2014 at. 22:30
Mirror binoculars reflects dals lighting the