Yeah, I'll take pictures of all three of those tomorrow -- getting a little late here tonight. But some more info in brief reviews I did:
see pictures here:
http://www.gatewaytoairguns.com/airguns/forums/thread-view.asp?tid=22957&mid=183647#M183647------------------------------------------------
Manufacturer: Nikon
Model: Monarch
Airgun Rated?: Y
Zoom range: 4-16
Objective: 42
Reticle: duplex
Turret type: no lock, covered, finger or coin turn
Click val: 1/4
Caps: Flip up
Special features: Locking Side Focus
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Zoom Feel: solid, smooth
AO feel: solid, easy, smooth
Turret feel: crisp, distinct click, easy turn
Parallax on zoom:
Brightness:
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View impressions: You see a lot of tube when looking down the scope. nearly zero chromatic aberration. Reticle inverts backlight. Min focus is about 40 yards. Nice scope...not at all good for short shooting.
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Manufacturer: Leupold
Model: VX-I
Airgun Rated?: Y
Zoom range: 3-9
Objective: 40
Reticle: Dupliex
Turret type: coin turn, zero adjustable, no lock
Click val: 1/4th
Special features: None
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Zoom Feel: Very stiff, smooth
AO feel: NA
Turret feel: No click, smooth
Parallax on zoom: excellent
Brightness:
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View impressions: Nice depth in eye relief. Scope tube nearly disappears when you look down. Zero chromatic abberation. Very light-weight scope. As there is no AO, the scope has limited use for target shooting...Excellent clarity and quality.
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Manufacturer: Sightron
Model: SII
Airgun Rated?: Y
Zoom range: 4-12
Objective:42
Reticle: Mil dot
Turret type: Coin turn, adjustable, covered (with generous threading)
Click val: 1/4th
Special features:
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Zoom Feel: Perfect
AO feel: NA
Turret feel: distinct light click, very smooth
Parallax on zoom: excellent
Brightness:
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View impressions: Smooth view in eye relief. Not as generous as Leupold, but easy on the eye. Some purple chromatic aberration when badly out of focus. Smoothest adjustment operation of any scope I have tried.