Visit the SWFA.com site to check out our current specials. |
1 or 30mm tube |
Post Reply |
Author | |
crashfirepm53
Optics GrassHopper Joined: October/09/2004 Location: United States Status: Offline Points: 13 |
Post Options
Thanks(0)
Posted: October/09/2004 at 17:24 |
Benifits of a 30mm tube over a 1''? |
|
ranburr
Optics Master Joined: May/16/2004 Status: Offline Points: 1082 |
Post Options
Thanks(0)
|
30mm is stronger, some people might say brighter. I personally cannot tell a difference in the brightness. 30mm allows for more adjustment for long range shooting. 30mm slightly larger viewing area. 1" is just as good optically and the scope, rings, etc. cost a whole lot less.
ranburr |
|
cheaptrick
MODERATOR Joined: September/27/2004 Location: South Carolina Status: Offline Points: 20844 |
Post Options
Thanks(0)
|
30mm is the better of the two.
But, a 30mm tube is not brighter and has no benefits concerning the amount of light that it can let in.
Geesh, I thought that myth had been squashed years ago.
30mm tubes allow for more adjustments as the previous poster had suggested. |
|
If at first you don't secede...try..try again.
|
|
crashfirepm53
Optics GrassHopper Joined: October/09/2004 Location: United States Status: Offline Points: 13 |
Post Options
Thanks(0)
|
I'm assuming you are saying that it does allow more light?
|
|
ranburr
Optics Master Joined: May/16/2004 Status: Offline Points: 1082 |
Post Options
Thanks(0)
|
The answer is maybe and it depends on who you believe. Some will say that the larger surface area allows more light in and thus it will be brighter. I have read where some say that an objective size is an objective size and the rest of the tube does not matter. I have also seen claims that a 1" is actually brighter because the same amount of light is being forced down a narrower path. Personally, if everything else is equal, I can tell no difference in the brightness of a 1" or a 30mm tube. I think the answer from most everyone will be that they cannot tell any difference in brightness. Where much of this debate comes from is the high-end euro 30mm scopes are usually brighter then the lower costing 1" economical scopes that are made to be price competitive in the U.S. market. The difference here is not due to the size of the tube, but rather lense coatings.
ranburr |
|
tbone1
Optics Apprentice Joined: May/31/2004 Status: Offline Points: 195 |
Post Options
Thanks(0)
|
The real question I have is who has actually compared for example a Swarovski 3.5-10x42 A-line and compared it to a 2.5-10x42 Profesional Hunter side by side or other equivalent models. Not just for a few minutes in a store but compared them as the light fades for an hour or so and see if there is anything that starts to become noticable. I have started testing scopes this way and have been able get a better idea of their performance. I myself have been wondering whether the 30mm is any better than the 1" in comparable models (mainly Zeiss and Swarovski). I see some people believe they are for one reason or another. Others believe that the 1" are just as good. I have not been able to compare them OBJECTIVELY OR FAIRLY yet so I can't really say. But I would love to hear from someone who owns both of them, who has compared them side by side, numerous times and under different conditions and get their perspective. I don't know that any rumor has been squashed just because someone has a good technical arguement one way or another. I for one still have questions.
|
|
tbone1
Optics Apprentice Joined: May/31/2004 Status: Offline Points: 195 |
Post Options
Thanks(0)
|
Crashfire, I have several 30mm scopes and several 1". A Zeiss VM/V 30mm and a Zeiss Conquest 1". Also a Schmidt & Bender 30mm and a Leupold Long Range 30mm. The Leupold 30mm is not much different than a Leupold 1" except that it does have a lot more adjustment range. The Zeiss VM/V and the Schmidt & Bender are totally different scopes than the Leupold and the Zeiss conquest. They Zeiss VM/V and the S&B are also much brighter than the Leupold or the Zeiss Conquest. However like ranburr said, they have top of the line glass as well as a 30mm tube. Is that what you wanted to know? |
|
crashfirepm53
Optics GrassHopper Joined: October/09/2004 Location: United States Status: Offline Points: 13 |
Post Options
Thanks(0)
|
Yes.Spend the extra money on the scope with better glass.I think I have decided on the Elite 4200 in the 4-16x50. Still Considering the 40mm though.I've found a great deal on them.
|
|
Dale Clifford
Optics Jedi Knight Joined: July/04/2004 Location: United States Status: Offline Points: 5087 |
Post Options
Thanks(0)
|
A 30 mm tube allows for more adjustment in the erectors of a variable scope. Thus 3x12 or a factor of 4 which is not possible in a 1 inch tube which can only be a 3x9 or a factor of 3. Scopes do not collect light they are passive devices and only work on what is there. The coatings on the lenses are more important at this point, for not allowing the light already in the device from bouncing around. Whether a scope is brighter or not (what ever that means) is more a function of an individual preception at the time of observation. Whether a lenses system has more resolution or contrast can be measured. And none of them have anything to do with how well the shooter has done his job.
|
|
crashfirepm53
Optics GrassHopper Joined: October/09/2004 Location: United States Status: Offline Points: 13 |
Post Options
Thanks(0)
|
Due to the extra cost of rings, I'll prob. stay away from the 30mm.Thanks for all the info.
|
|
Chris Farris
TEAM SWFA - Admin swfa.com Joined: October/01/2003 Location: Texas Status: Offline Points: 8024 |
Post Options
Thanks(0)
|
30mm scopes were first made in |
|
Post Reply | |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |