New Posts New Posts RSS Feed - Docter optics
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Check GunBroker.com for SWFA's No Reserve and No Minimum bid firearm auctions.

Docter optics

 Post Reply Post Reply   Topic Search Topic Search  Topic Options Topic Options
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/28/2009 at 12:44
rifle shooter View Drop Down
Optics GrassHopper
Optics GrassHopper


Joined: January/28/2009
Status: Offline
Points: 3
I was comparing my new Docter Optics 2.5 to 10 power scope to several other high quality scopes. I noticed that when the magnification was increased on the Docter the cross hairs got larger (mainly in the heavy duplex area away from the center).  None of the other scopes did it. A friend says that it is a sigh of a cheap scope. Anyone know anything about why this happens?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/28/2009 at 12:47
pyro6999 View Drop Down
Optics Retard
Optics Retard
Avatar
OT TITAN

Joined: December/22/2006
Location: North Dakota
Status: Offline
Points: 22024
different focal plane which in your case it sounds to me like your scope is a second focal plane and the other scopes you looked through are first focal plane scopes.


Edited by pyro6999 - January/28/2009 at 12:48
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/28/2009 at 12:54
rifle shooter View Drop Down
Optics GrassHopper
Optics GrassHopper


Joined: January/28/2009
Status: Offline
Points: 3
Could you please explain? Is one way better?
Thanks
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/28/2009 at 12:55
pyro6999 View Drop Down
Optics Retard
Optics Retard
Avatar
OT TITAN

Joined: December/22/2006
Location: North Dakota
Status: Offline
Points: 22024
this is straight from swfas "scope school"


The crosshair pattern inside the scope that is used to aim.  Reticles can be made of wire or etched onto the glass.  The reticle can be placed in the first focal plane (objective plane) like most European scopes.  This causes the size of the reticle to change proportionally with the power.  When the reticle is in the first plane it always covers the same amount of area on the target because the reticle grows at the same rate that the image does.  Very good for low light shots.

If the reticle is placed in the second focal plane (eye piece plane) the reticle will not change when the power is changed but the target will change in size.  The reticle will actually take up less area on the target when the power is increases because the target has been magnified but the reticle has not been magnified.  Very good for long range shots.



Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/28/2009 at 13:05
Rancid Coolaid View Drop Down
Optics Jedi Master
Optics Jedi Master
Avatar

Joined: January/19/2005
Location: United States
Status: Offline
Points: 7705
Originally posted by pyro6999 pyro6999 wrote:

this is straight from swfas "scope school"


The crosshair pattern inside the scope that is used to aim.  Reticles can be made of wire or etched onto the glass.  The reticle can be placed in the first focal plane (objective plane) like most European scopes.  This causes the size of the reticle to change proportionally with the power.  When the reticle is in the first plane it always covers the same amount of area on the target because the reticle grows at the same rate that the image does.  Very good for low light shots.

If the reticle is placed in the second focal plane (eye piece plane) the reticle will not change when the power is changed but the target will change in size.  The reticle will actually take up less area on the target when the power is increases because the target has been magnified but the reticle has not been magnified.  Very good for long range shots.





Not entirely accurate.  In low light, reticles tend to be more difficult to see.  At high magnification, the reticle can be easier to see than a comperable reticle on a SFP; however, at low magnification in low light (taking a shot on game not far away) the FFP reticle can all but disappear completely.

If you have not sued FFP, I advise you look through one before putting $$ down on one.  There are advantages to each, but a unilateral statement that FFP is better in low light is not accurate.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/28/2009 at 13:06
rifle shooter View Drop Down
Optics GrassHopper
Optics GrassHopper


Joined: January/28/2009
Status: Offline
Points: 3
Makes sense. When I hunted in Europe while staitioned over there there were hardly ever long shots. However, there were lots of shots in poor light. The Germans are very big on scopes that perform well in low light conditions.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/28/2009 at 14:07
Kickboxer View Drop Down
MODERATOR
MODERATOR
Avatar
Moderator

Joined: February/13/2008
Status: Offline
Points: 18345
Welcome to the forum, btw.  Good to have you aboard.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/28/2009 at 14:53
hunter12345 View Drop Down
Optics Journeyman
Optics Journeyman


Joined: November/21/2007
Status: Offline
Points: 470
Nothing wrong with your Doctor scope which has a the reticle in the second focal plane.That scope would be better for low light hunting conditions.Your friend must be jelous that you own a high quality scope and was saying that to upset you.Doctor scopes are made in Germany in the Zeiss factory and built like tanks. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/28/2009 at 22:07
Tip69 View Drop Down
Optics Master Extraordinaire
Optics Master Extraordinaire
Avatar
Tip Stick

Joined: September/27/2005
Location: Nebraska
Status: Offline
Points: 3483
Originally posted by rifle shooter rifle shooter wrote:

I noticed that when the magnification was increased on the Docter the cross hairs got larger (mainly in the heavy duplex area away from the center).  None of the other scopes did it.
 
After reading this thread, I think there is some confusion over which scope is First Focal plane(FFP) and Second.   He said the Docter's cross hairs got larger, that would indicate a FFP to me.


Edited by Tip69 - January/28/2009 at 22:08
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/29/2009 at 04:13
seawolf View Drop Down
Optics Apprentice
Optics Apprentice
Avatar

Joined: February/11/2008
Location: Norway
Status: Offline
Points: 109
Tip69 is right.
Reticle in the first focal plane (FFP) increases as you crank up the magnification.
Reticle in the second focal plane (SFP) has the same size regardless of magnification.
 
Both systems has their pro and con.
In thight spots and dense wood I prefer the SFP and a bold reticle like  the #4 or Heavy Duplex.  Quick on target if game is moving and it stands out clear against dark background even on low magnification.
On more open land and in dusk and dawn, the FFP shines in my opinion.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/29/2009 at 05:24
8shots View Drop Down
Optics Jedi Knight
Optics Jedi Knight
Avatar
Lord Of The Flies

Joined: March/14/2007
Location: South Africa
Status: Offline
Points: 5754
I also think that FFP reticules have better application when used for ranging in conjunction with a mildot or other graded reticule,as the reticule and target remain in proportion to one another.
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Similar Threads: "Docter optics"
Subject Author Forum Replies Last Post
docter optics 3x12x56mm twilson Rifle Scopes 3 12/26/2005 4:50:39 PM
Docter Optics Unipoint 3-12x56 AirGunner Rifle Scopes 0
docter optics sly_dog Binoculars 1
Docter Optics hunter12345 Rifle Scopes 2
Docter Optic? kossuthreb Rifle Scopes 3 1/19/2006 7:56:44 PM
DOCTER OPTIC RIFLESCOPES RICK WILKINSON Rifle Scopes 1 3/12/2004 2:09:19 AM
Docter Optic Red Dot Sight Mounting meangoat Rifle Scopes 1 11/7/2006 11:49:30 PM
Docter Optic VS Pentax DCF SP Acenturian Binoculars 2 3/30/2006 2:52:19 PM
Docter Docter give me the news Brooks Rifle Scopes 3
Vortex Optics and Eagle Optics Sefrez Binoculars 1


This page was generated in 0.422 seconds.