BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

Reply to thread

Message: <blockquote data-quote="Nixterdemus" data-source="post: 3597689" data-attributes="member: 96265">I yearned for bins w/FF thinking they would be the end-all of glass. Nevah could save enough moolah, but I kept buying bins. Finally, it dawned on me that what I liked was little PC. To the point of seeing artifacts of AMD w/o the full blown tilt-a-whirl show.The rolling ball doesn't bother me though I prefer it right on the edge evah so slightly subdued. In fact I didn't care for the Zen Ray 7x36 because of the wide field combined w/healthy dose of PC. It showed what I referred to as the fountain effect. Panning up a tree trunk the middle of the trunk "grew" and either side from center looked as water slowly breaking off a V-hull. The wide FOV gave me the illusion of the right side, still panning up the trunk, turning CW and left CCW. Whether trunk or foliage this upright vertical pan resembled a water fountain. Too confusing for me simple mind. Though I suspect distortion is the direct relation twixt FF & 400' FOV on an upscale 8X. I defer the final analogy to the experts.I might not have explained correctly, but I know it when I see it. To date among modest bins the Kruger Caldera 8x42 provides me mild AMD w/just a touch of PC. Looking at the woods an upward vertical pan gives the illusion of the whole view tilting from top back towards me w/bottom pushed away.  Coming down the bottom tilts towards me w/top pushed away.It's one of the few 8X I own generally preferring higher magnification. Maybe a FF is somewhere in me future.As always YMMV ...ETA:The 10x45 Opolyth Royal has more PC than the 10x40 Conquest. Vertical pan on an oak tree trunk, 4'-5' circumference at 15' nothing but trunk, the Conquest creates the illusion of a shallow depression. As if the lens pushed the trunk in a mite. I have to pan slow and concentrate coz at the same time I can lose sight of the indention & see the bark 'stretch'.  The Royal indention is a mite deeper and wider and I cannot duplicate the stretch at that short distance. At longer distance they both lose the indention and show a mild stretch. The PC is close to the same, yet different enough to notice.</blockquote>

Verification