How To Put a Meade 5000 on a Diet!
Posted 28 January 2008 - 10:29 PM
1. Lower weight, obviously. This to help some at keeping Dobs from bowing over or binoviewers snapping off their holders
2. Easier eye placement at the eyelens due to little or no nose clearance issues from overly large diameter eyepiece top and side areas. This makes for a better and more impressive viewing experience!
3. The ability to binoview with especially nice model selections that would otherwise be too imposing for proper nose clearance and interpupillary spacing of the eyes to get at them.
4. Greater room in ones eyepiece case for MORE oculars!
A few disadvantages are:
1. Working to take apart ones expensive eyepiece(s). This doesn't need be as bad as it sounds. For one, the steps are simple in this case using one small jeweler's screwdriver.
2. Working around the yucky clear grease that is meant to help facilitate eyecup height adjustments. This is not that bad either if one goes slowly and keeps away from the eyelens. The cap can be left on the barrel end. If grease did get on the glass it can be carefully cleaned off again but it is more work than removing eyelash goo, etc.
3. Finding suitable replacement eyepiece lens caps for the top end of newly configured eyepieces. In this case there are some great ones available for use with revised Meade 5000 series 26mm Plossls (42mm dia.) and 24mm Super Wide Angles (48mm dia.). They are available from Gavin Warnes:
Surely there are more caps around somewhere for purchase for other focal length Meade series 5000 eyepieces one would wish to revise. Another worthwhile approach of course is to "make" your own
Ok, here is where the helpful pictures come in...
Posted 28 January 2008 - 10:42 PM
Left - complete
Right - with rubber outer cover pulled off
Posted 28 January 2008 - 10:47 PM
Note: immediately put the screw and bushing away in a safe place because it is small and greasy and like a jumping cactus will "stick" to something and then jump away for good!
Posted 28 January 2008 - 10:49 PM
Posted 28 January 2008 - 10:52 PM
Posted 28 January 2008 - 10:53 PM
Note the new eyepiece top lens cap I found for it in my stuff!
Eyepiece weight reduction from approx 9 ozs. to 7.25 ozs.
and waistline down to 42mm!
Posted 28 January 2008 - 11:01 PM
My thoughts exactly. However, the next best thing is coming up in my series of images...the 24mm UWA There will be some weight reduction data included below but the cheap plastic kitchen scale I have here at my disposal is junky. At any rate, there is some reasonably useful correlation data to be gleaned from the 24mm against the 30mm since they are scaled designs!
Posted 28 January 2008 - 11:04 PM
Posted 28 January 2008 - 11:08 PM
Posted 28 January 2008 - 11:12 PM
Posted 28 January 2008 - 11:16 PM
NOTE 1: my gripping it with a swath of paper towel since it is coated with light grease and would be a bit too slippery to lift. Hold the outer sleeve down with the other hand.
NOTE 2: be sure to wipe grease off these eyepieces in a clockwise direction as to not loosen the barrel and potentially flop out those precious lenses!
Posted 28 January 2008 - 11:19 PM
Posted 28 January 2008 - 11:22 PM
Posted 28 January 2008 - 11:22 PM
Posted 28 January 2008 - 11:27 PM
Posted 28 January 2008 - 11:35 PM
Posted 28 January 2008 - 11:37 PM
Posted 28 January 2008 - 11:39 PM
Posted 28 January 2008 - 11:48 PM
Posted 28 January 2008 - 11:51 PM
Over a half pound weight reduction realized!
Posted 28 January 2008 - 11:54 PM
Posted 29 January 2008 - 12:12 AM
Next up...the one everyone has been waiting for!
Posted 29 January 2008 - 12:16 AM
The 30mm's eyecup is absolutely huge--I'd bet a half pound savings when removed.
These huge eyecups just aren't justified.