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Equipment Discussions >> Eyepieces

Tamiji Homma
Pooh-Bah

Reged: 02/24/07
Posts: 1092
Loc: California, USA

Re: Why aren't eyepieces lighter?
07/03/09 02:49 PM

Quote:

Imbalance is only one of several "ills" of excessively porky eyepieces.

A case full of eight-element eyepieces is heavy and adds to the hassle of loading and unloading as a result. A tall, heavy eyepiece is more apt to unscrew an SCT diagonal during a slew. A heavy eyepiece is more apt to damage itself on impact than a lighter one (hits with more force). Those are just a few examples.

The number of ills associated with lower weight eyepieces is smaller (like everything else about them ).

Regards,

Jim

Here is datapoint, weight measurement of eyepiece without caps.

Those three eyepieces are very light for its focal length.
81.0 25.0 Zeiss-Asphical 1.25"
75.0 28.0 Siebert-UW 1.25"
68.0 23.0 SV23

Code:


  gram focal   name

 958.0  28.0 WO-UWAN

 771.0  30.0 BW-Optik/Zeiss

 722.0  17.0 TV-Ethos

 678.0  22.0 TV-Nagler

 555.0  50.0 Tak-LE

 530.0  42.0 Vixen-LVW

 492.0  40.0 TMB-Paragon

 424.0   3.5 Pentax-XW

 390.0  10.0 Pentax-XW

 358.0  20.0 Pentax-XW

 354.0  31.0 Hyperion 2" mode

 308.0  32.0 Edmunds-RKE

 298.0  24.0 Hyperion 2" mode

 291.0  30.0 TMB-Paragon

 248.0  14.0 Denkmeier

 237.0  16.0 WO-UWAN

 179.0  19.0 TV-Panoptic

 175.0  32.0 TV-Plossl

 160.0  30.0 Tak-LE

 150.0   3-6 TV-Nagler-Zoom 3-6

 133.0   5.0 Tak-LE

 131.0   3.6 Tak-LE

 101.0  12.5 Tak-LE

  89.0   5.1 Pentax-XO

  84.0  16.0 ZAO2

  81.0  25.0 Zeiss-Asphical 1.25"

  75.0  28.0 Siebert-UW 1.25"

  73.0  15.0 TV-Plossl

  68.0  23.0 SV23

  67.0  10.0 ZAO2

  66.0   6.0 ZAO2

  64.0  11.0 TV-Plossl

  62.0   4.0 ZAO2

  56.0   7.0 TMB-mono

Tammy

Edited by Tamiji Homma (07/03/09 02:50 PM)

Post Extras

Entire thread
Subject	Posted by	Posted on
Why aren't eyepieces lighter?	AlienFirstClass	07/01/09 02:53 PM
Re: Why aren't eyepieces lighter?	jrbarnett	07/02/09 11:55 AM
Re: Why aren't eyepieces lighter?	BillP	07/01/09 11:51 PM
Re: Why aren't eyepieces lighter?	FirstSight	07/01/09 04:12 PM
Re: Why aren't eyepieces lighter?	russell23	07/01/09 03:17 PM
Re: Why aren't eyepieces lighter?	hfjacinto	07/01/09 03:51 PM
Re: Why aren't eyepieces lighter?	FirstSight	07/01/09 04:15 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/01/09 05:42 PM
Re: Why aren't eyepieces lighter?	Paul G	07/03/09 08:17 AM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/03/09 01:47 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/01/09 05:45 PM
Re: Why aren't eyepieces lighter?	JohnH	07/08/09 10:48 PM
Re: Why aren't eyepieces lighter?	russell23	07/09/09 02:33 PM
Re: Why aren't eyepieces lighter?	Levine	07/05/09 12:50 PM
Re: Why aren't eyepieces lighter?	Mike Hosea	07/05/09 02:04 PM
Re: Why aren't eyepieces lighter?	slyke	07/01/09 07:13 PM
Re: Why aren't eyepieces lighter?	Brian Schmidt	07/01/09 09:17 PM
Re: Why aren't eyepieces lighter?	pankhi	07/01/09 11:52 PM
Re: Why aren't eyepieces lighter?	E_Look	07/02/09 11:51 AM
Re: Why aren't eyepieces lighter?	russell23	07/01/09 06:48 PM
Re: Why aren't eyepieces lighter?	stana	07/01/09 06:17 PM
Re: Why aren't eyepieces lighter?	Lawrence Sayre	07/01/09 06:21 PM
Re: Why aren't eyepieces lighter?	Eddgie	07/02/09 12:52 PM
Re: Why aren't eyepieces lighter?	Eddgie	07/02/09 01:35 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/02/09 11:13 PM
Re: Why aren't eyepieces lighter?	NCMountains	07/05/09 11:26 AM
Re: Why aren't eyepieces lighter?	Scott Watson	07/04/09 06:55 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/04/09 11:26 PM
Re: Why aren't eyepieces lighter?	gnowellsct	07/03/09 10:50 AM
Re: Why aren't eyepieces lighter?	jrbarnett	07/03/09 11:23 AM
Re: Why aren't eyepieces lighter?	Tamiji Homma	07/03/09 02:49 PM
Re: Why aren't eyepieces lighter?	Starpoke	07/03/09 08:38 PM
Re: Why aren't eyepieces lighter?	Starpoke	07/03/09 08:44 PM
Re: Why aren't eyepieces lighter?	Starpoke	07/03/09 08:46 PM
Re: Why aren't eyepieces lighter?	Jim Rosenstock	07/03/09 08:48 AM
Re: Why aren't eyepieces lighter?	nightstalker	07/03/09 08:54 AM
Re: Why aren't eyepieces lighter?	russell23	07/02/09 11:49 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/03/09 01:38 PM
Re: Why aren't eyepieces lighter?	russell23	07/03/09 03:19 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/04/09 01:20 AM
Re: Why aren't eyepieces lighter?	russell23	07/04/09 12:06 PM
Re: Why aren't eyepieces lighter?	russell23	07/04/09 12:13 PM
Re: Why aren't eyepieces lighter?	Starman1	07/04/09 12:43 PM
Re: Why aren't eyepieces lighter?	russell23	07/04/09 04:43 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/04/09 05:40 PM
Re: Why aren't eyepieces lighter?	Starman1	07/04/09 06:00 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/04/09 11:20 PM
Re: Why aren't eyepieces lighter?	Starman1	07/05/09 01:29 AM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/05/09 02:12 AM
Re: Why aren't eyepieces lighter?	Starman1	07/05/09 11:06 AM
Re: Why aren't eyepieces lighter?	hfjacinto	07/05/09 11:24 AM
Re: Why aren't eyepieces lighter?	Lawrence Sayre	07/04/09 07:08 PM
Re: Why aren't eyepieces lighter?	csa/montana	07/05/09 11:02 AM
Re: Why aren't eyepieces lighter?	Lawrence Sayre	07/05/09 12:14 PM
Re: Why aren't eyepieces lighter?	Starman1	07/05/09 01:59 PM
Re: Why aren't eyepieces lighter?	Lawrence Sayre	07/06/09 06:31 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/07/09 12:20 AM
Re: Why aren't eyepieces lighter?	Luigi	07/07/09 07:46 AM
Re: Why aren't eyepieces lighter?	Lawrence Sayre	07/05/09 02:45 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/04/09 01:54 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/04/09 12:37 PM
Re: Why aren't eyepieces lighter?	Tamiji Homma	07/04/09 01:47 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/04/09 01:57 PM
Re: Why aren't eyepieces lighter?	russell23	07/04/09 04:36 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/04/09 05:32 PM
Re: Why aren't eyepieces lighter?	ColoHank	07/04/09 11:50 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/05/09 02:15 AM
Re: Why aren't eyepieces lighter?	ColoHank	07/05/09 11:27 AM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/05/09 03:00 PM
Re: Why aren't eyepieces lighter?	russell23	07/05/09 04:28 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/05/09 09:29 PM
Re: Why aren't eyepieces lighter?	russell23	07/06/09 07:43 PM
Re: Why aren't eyepieces lighter?	Eddgie	07/07/09 09:38 AM
Re: Why aren't eyepieces lighter?	russell23	07/07/09 04:06 PM
Re: Why aren't eyepieces lighter?	Eddgie	07/07/09 05:12 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/07/09 05:32 PM
Re: Why aren't eyepieces lighter?	Jim Rosenstock	07/07/09 06:28 PM
Re: Why aren't eyepieces lighter?	AlienFirstClass	07/07/09 10:50 PM
Re: Why aren't eyepieces lighter?	Lawrence Sayre	07/08/09 06:01 AM
Re: Why aren't eyepieces lighter?	Mike Hosea	07/08/09 10:24 AM
Re: Why aren't eyepieces lighter?	russell23	07/08/09 08:52 AM
Re: Why aren't eyepieces lighter?	Starman1	07/08/09 01:55 AM
Re: Why aren't eyepieces lighter?	russell23	07/08/09 08:54 AM
Re: Why aren't eyepieces lighter?	Midnight Dan	07/08/09 09:23 AM
Re: Why aren't eyepieces lighter?	russell23	07/08/09 10:39 AM
Re: Why aren't eyepieces lighter?	russell23	07/08/09 10:47 AM
Re: Why aren't eyepieces lighter?	Luigi	07/08/09 07:59 PM
Re: Why aren't eyepieces lighter?	russell23	07/08/09 10:25 PM
Re: Why aren't eyepieces lighter?	Starman1	07/06/09 08:54 PM
Re: Why aren't eyepieces lighter?	BillP	07/06/09 09:03 PM
Re: Why aren't eyepieces lighter?	jrbarnett	07/03/09 12:21 AM
Re: Why aren't eyepieces lighter?	AZStarGuy	07/01/09 03:09 PM

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