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Eyepieces (14mm - 55mm) Archives
Dec 10 2009 10:09 AM | admin in Eyepieces (14mm - 55mm)
I purchased the complete set of the Orion Q70 2" eyepieces, 26mm, 32mm & 38mm, about 6-8 months ago
Dec 15 2009 11:37 AM | aa5te in Eyepieces (14mm - 55mm)
I’ll first talk about the mechanics of it. It arrived in a heavy duty bolt case that has "MZT8-24" stamped on it. The finish is nice, the eyecup (always up, you can’t fold it down) is soft rubber, and there is a rubber grip on the
Dec 15 2009 09:05 AM | admin in Eyepieces (14mm - 55mm)
With a zoom eyepiece, you get the convenience of many different focal lengths in one eyepiece. This allows you to dial in the best magnification for any object without
Mar 12 2005 10:58 AM | admin in Eyepieces (14mm - 55mm)
June 2000. Los Angeles, CA USA. I've been giant binocular viewing for several years. I purchased my first telescope in the past six months. I now have a Tele Vue Pronto, a Tele Vue 101, and a back ordered Mak. I live in Los Angeles and view primarily from my home in the city. I try to attend the monthly Los Angeles Astronomical Society's dark sky parties at Mt. Pinos. I became interested in the Collins I3 Piece as a tool to use in Los Angeles' light pollution.
Mar 12 2005 11:02 AM | admin in Eyepieces (14mm - 55mm)
My interest was roused by an ad for the "I3 Piece" image intensifier eyepiece by Collins Electro-Optics. It claims an increase in the light grasp of a telescope by about two magnitudes, or the equivalent of a non-intensified telescope 21/2 times larger. Then there was that positive review of the I3 Piece in the February 1999 Sky & Telescope. I also visited the Collins Electro-Optics web site for more information. The answer to a dilemma appeared to be at hand - more light grasp without more telescope to lug around.
Mar 16 2005 10:52 AM | admin in Eyepieces (14mm - 55mm)
Though the merits and limitations of these two eyepieces differ, both are good and worthy of consideration for inclusion in one's eyepiece collection.
Mar 16 2005 10:57 AM | admin in Eyepieces (14mm - 55mm)
Since Cloudy Nights asks that we give a little background on ourselves, I will say a few words here about it. Aside from sporadic childhood observing, I’ve been a serious observer for the last 8 years, being mainly a hunter of deep-sky denizens from dark sites. However I thoroughly enjoy both lunar & planetary observing too, which I perform mostly in my backyard, since the seeing there tends to be quite a bit better than the dark sites I frequent. I currently own 4 telescopes which are a 14.5” f/4.3 Zambuto equipped Starmaster (reviewed elsewhere on this site), a 10” f/5.4 home-made dob with a mirror from Mike Spooner, an 92mm AP f/6.6 Stowaway, and an older version of the WO 80mm f/6 Megrez, not to mention a plethora of eyepieces. I have no affiliation with any astronomy OEM or retailer, although with the amount of money I’ve been throwing at them as of late (to my wife’s consternation), perhaps I should reconsider that position!
Mar 16 2005 11:04 AM | admin in Eyepieces (14mm - 55mm)
In The Year-Round Messier Marathon Field Guide, Harvard Pennington claims that an eyepiece with a 1° true field is "ideal" for observing Messier and deep-sky objects. To find an eyepiece's true field of view, divide the eyepiece's apparent field of view by the magnification it yields in a given telescope*. By way of example, the 40mm Stellarvue Deluxe Plössl has a 43° apparent FOV, and in my 8" F6 Dobsonian reflector it yields 30x magnification, for a true FOV of 43/30 or 1.43° (86 arc-minutes). In any observing session, I reach for this eyepiece first. Why a 40mm Plössl, when there are so many Naglers, Panoptics, ultrawides
Mar 16 2005 11:06 AM | admin in Eyepieces (14mm - 55mm)
I ordered these from Hardin Optical’s Web site on a Sunday. I received a confirmation and a UPS shipping notification on Monday. The EP’s arrived on Wednesday. Painless and efficient. They were each packed in a plastic bag inside a quality box , and placed in a small box packed with Styrofoam peanuts. The EP’s came with bottom dust caps
Mar 16 2005 11:44 AM | wilash in Eyepieces (14mm - 55mm)
I purchased the Vixen LV 50mm in a department store in downtown Osaka, Japan for 12,000 Japanese yen, about US$105.00. I was looking for an affordable low-power eyepiece that would give me a large exit pupil for a Maksutov Cassegrain telescope.
Mar 16 2005 11:56 AM | admin in Eyepieces (14mm - 55mm)
Ever since I bought my NexStar 11 GPS two years ago, I've been searching for ways to get the widest non-vignetted field of view possible from my scope. (Note: When I bought my NS11 I purchased an EyeOpener 2" visual back in anticipation of someday buying large 2" eyepieces. More about that later on).
Mar 16 2005 11:59 AM | admin in Eyepieces (14mm - 55mm)
This is a review of the 14mm Pentax SMC XL eyepiece I won for a review contest on Cloudynights. I remember how happy I was (and still am! thanks Cloudynights!) when I won the contest, so it would only be fair to write a short review on this great eyepiece. Keep in mind that while I have seen a lot of views through different eyepieces (and telescopes), none were in the price range of the Pentax XL. I live in Zagreb, Croatia, and have met many croatian amateur astronomers and astronomy society members, but $200+ eyepieces seem just too expensive for us. There may be some similar eyepieces out there but I've not met their owners (yet). I've only had a brief chance to compare it to my friend's 13.8mm Meade SWA. Not long after the Pentax arrived, I got a new telescope. An Intes MN-71, 7" mak-newt on HEQ-5 mount replaced
Mar 16 2005 12:15 PM | admin in Eyepieces (14mm - 55mm)
I recently acquired a Tele Vue TV102 refractor, and decided I needed some high power eyepieces. I had a Tele Vue Nagler 3-6mm zoom, but was unhappy with what I felt was too narrow a field of view and lack of eye relief. I was considering the 5mm Nagler or Radian, when I saw an ad for the new version of the 5x Powermate. I already had a 2.5x Powermate that I used with my 24mm and 19mm Panoptics with my 8” SCT, and was very happy with it, so I sold the zoom, bought the Powermate, and pocketed the change – temporarily, it turned out.
Mar 16 2005 12:22 PM | admin in Eyepieces (14mm - 55mm)
People are always looking to improve their equipment choices. Sometimes it turns out that improving choices doesn’t necessarily mean costing more. I often watch to see what second hand eyepieces are for sale. I’ve bought many second hand eyepieces, including two used in this comparison. The Televue 20mm plossl comes up for sale a lot. That’s because it comes standard with Tv scopes and most people have already filled that 20mm niche by the time they get around to buying a Tv scope. So they keep the scope and sell the eyepiece. I bought one second hand and after using it in several of my scopes, including my f8 6" refractor and my f11 5" SCT, I started comparing the view to several of my other eyepieces in the same magnification range. I set out to compare eyepieces from 16mm to 20mm, all mid-priced or low priced inexpensive eyepieces. By inexpensive, I mean not in the cost range of the Naglers, Radians, Ultrawides or even the less costly Superwides.
Mar 16 2005 12:29 PM | admin in Eyepieces (14mm - 55mm)
TAL 24mm UWA is a high-quality eyepiece for low-power wide-angle scanning of the sky with emphasis on large open clusters such as Beehive, Pleiades, Hiades, Alpha Perseus.
Mar 16 2005 12:37 PM | David Knisely in Eyepieces (14mm - 55mm)
The popularity of wide-field eyepieces has surged in recent years, and, to a certain extent, so has their cost and complexity. Systems containing more than the usual handful of elements are required to achieve good correction of aberrations over wider fields especially in the shorter f/ratio telescopes we see today. It was with some trepidation that I heard of the new Wide Scan Type III eyepiece. I tried one and decided that, for its cost, it might have a place in my eyepiece box.
Mar 16 2005 12:48 PM | admin in Eyepieces (14mm - 55mm)
In the How-To section of Cloudy Nights, there is an article by Allister St. Claire in which he points out that the low power eyepieces routinely supplied with entry level telescopes can be upgraded for no more than $25.00 ($50.00 with a 2x Barlow). The case Allister makes for such an upgrade is quite compelling and the article is an unusually good source of both information and practical advice.
Mar 16 2005 12:57 PM | admin in Eyepieces (14mm - 55mm)
I spent Saturday making a homemade eyecup for my original-styled 14mm Meade UWA. I wanted to test it out to try and get the right positioning height for it while used in my 8 inch f/6 Dob Newtonian when viewing the Orion Nebula and the moon through clouds. The clouds and wind were problematic this Saturday night (19th). As best as I could tell, this newly fashioned eyecup made lunar and deep sky viewing acceptable (unlike my earlier no eyecup results) with the 8 incher. The eyecup material is a camera film case with end cut out and inserted upside down into a cardboard frame.
Mar 16 2005 12:58 PM | admin in Eyepieces (14mm - 55mm)
I do not own a Paracorr. I wish I did. My 16 inch f/4.6 would benefit from a Paracorr more than any scope I have ever owned. The following report is some of what I have experienced so far with no Paracorr to help the scope do better.
Mar 16 2005 01:04 PM | starpal in Eyepieces (14mm - 55mm)
The legendary batting instrument, the Brandon 94mm f-6.9 APO, was brought out under transparent (but stable) skies on November 13, 2000 at 9pm CT for the game. Ambient temperature was about 43 deg F. There was an on again, off again breeze enough to cause eye tearing in most any players eyes. It was the first real opportunity to run the bases with the above eyepieces, albeit briefly, but with sufficient levels of scrutiny to judge them fairly. The chosen methods of comparison were hardly the only or best possible ones available for refining results over eyepiece distinctions. Then again, the setting was such to accomplish something with several of them at once, a team! ...without going into overtime (approx. game time was 45
Mar 16 2005 01:07 PM | admin in Eyepieces (14mm - 55mm)
The fit and finish of the 25mm plossl seem good to very good. The eyepiece has an unusual smell to it. It smells like rubber (I guess from the rubber surround). Overall I would rank in about par with other generic plossl eyepieces that are available on the market. I would have to rank this at about 80% of the fit and finish of Plossl's costing much more. The eyepiece looks to be coated with at least 1 layer of MgFl coatings
Mar 16 2005 01:33 PM | admin in Eyepieces (14mm - 55mm)
When I purchased my NexStar 5 a while back, I needed some eyepieces to fill some gaps in my collection. Specifically, I wanted something that would be medium and high power on my new N5. Knowing this would require eyepieces of the shorter focal-length variety, I knew I was in for a challenge. I always hated the short focal-length Plossl and Orthoscopics, their eye-relief was just to small and therefore uncomfortable to use. I knew right away that I wanted eyepieces that had at least 15mm of eye-relief. I always hated having my eye practically touching the eye lens. On a tight budget, I was led to the venerable Vixen Lanthanum series of eyepieces
Mar 16 2005 01:40 PM | admin in Eyepieces (14mm - 55mm)
Just returned from the Chiefland Star Party where I was able to evaluate two Leica eyepieces over a 1 week period. These Eyepieces were on loan from APM. First off I would like to thank Markus Ludes for the chance to evaluate them. It was most kind of him
Mar 16 2005 01:51 PM | admin in Eyepieces (14mm - 55mm)
I use my 40mm MK-70 more than my 35mm Pan because it gives a wider field and doesn't hurt the Dob's balance as much. I find it easier to navigate with that 0.3* extra sky visible, even if the stars aren't exactly pin points at the edge of the field. Heck, the eye relief on both of these is so marginal that I can only use my new eyeglasses with them, which puts their unscratched status at risk. I have enough astigmatism that neither focuses cleanly, naked eye, given the
Mar 16 2005 01:58 PM | admin in Eyepieces (14mm - 55mm)
Very well made with chrome lower barrel and black upper piece that has rubber grip ring. Threaded for 2" filters. No eyecup. Lense is set in 5mm approx. Lens edges appear to be darkened. A handsome, high quality looking eyepiece.