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?? for Leupold Cascade porro owners.

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/05/2010 at 21:49
stephen b View Drop Down
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I just received a brand New Leupold Cascade 8x42 internal focus porro binocular and had a couple ?'s. First of all the view looks as if it is going to be great and will compliment the other binoculars that I have if...I can fix a couple issues with them.

1.  The first is an issue with the look through the lenses looking different in terms of color hue. The essence of the problem was apparent when I went to do the adjustment on the diopter setting. What was real weird was when I closed one eye or covered it to do the setting adjustment the view was much different in each eye when it came to color hue. It was almost like you were looking at different coatings applied to each side. It was a sunny day here and at first I was looking at a Douglas Fir tree to set the adjustment and when I looked through the (L) lens it looked through looked clear enough but when I looked through the (R) lens it had a real apparent warm -almost yellow amber cast to it. I thought " boy that is weird". I closed each eye back and forth slowly and it was real apparent that there was a big difference in the apparent color. I then looked to the North about a mile across our valley where the sun was shinning on some dirt on a hillside and also at a big area of some pine needle droppings on the ground under some firs. It was the same thing-the right side was much more of an amber hue. It was not just me, I had my Wife and Son look through them and they said the same thing. The view through them is outstanding but this difference in hue is just weird.

I spoke with Leupold today about it and they said it was probably an alignment issue that they can probably fix.
The Leupold Tech said color issues can show up with alignment problems. The thing is -the collimation looks fine.


2. The only other thing that I noticed was the focus on them really favors the far counter clockwise part of the focus wheel rotation. The overall focus travel on them is real long which is ok, but when you look about 600 yards to a mile away you are almost bottomed out at the far end of the counter clock wise rotation. There is not much room at all to rotate any further after that. It seems as if even through there is quite a bit of turning involved with the full range of the focus wheel-most of the effective range of the focusing is in the far end of the rotation on the counter clockwise side. I don't know if that is normal for these or not, I just thought that it was different.

Overall, I think these are going to be great; I will just need to have Leupold look at them. If anyone has any insight-please let me know.
 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/05/2010 at 23:52
Klamath View Drop Down
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if that was mine, Hi, Ho, Hi, Ho, its off to Leupold they go.  I have never seen anything like this.  Corlor bias is generally associated with coatings.  Right off the top of my head it sounds like some lens in one of the barrels did not get a coating ot two someplace
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/06/2010 at 14:52
stephen b View Drop Down
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I played with them this AM on a cloudy day and the Hue is definitely still different. But one thing I did notice with the diopter Adj. wheel is that I have to go almost to the end of the adj. (within less than one setting of the end) counter clockwise to get = clarity. It looks as if the range on these is only about 3.5 -4 markings on these + and - and I am almost at 3 in the counter clockwise direction. On most binoculars I am only about .5 to about 1 setting mark either way depending on the bino to achieve equal clarity. So that tells me that these are probably for sure out of alignment. and the Leupold Tech I talked to yesterday thought that they were just on the basis of the color hue difference.

Another thing I found out today about the focus wheel is that these bino's have about approx. 2 full turns of total rotation. When I checked their actual effective focal range I found out that I am almost to the end of counter clockwise rotation at only about 100-150 yards with only about 1/16 to 1/8 more turn necessary to achieve clarity at about 2 miles (infinity basically as far as focus goes). When I checked focus of the stated close focus of about 11 feet I found I only moved the focus wheel about 1/2 a turn from the max. focus distance. So this focus wheel on mine has about 2 full revolutions and the total effective focus adjustment range on mine is only about 1/2 turn total and it is all in the end range of the counter clockwise rotation. Basically the 1.5 turns to the clockwise direction beyond the close focus direction achieves no purpose.

So I think my pair is defective and I am hoping Leupold can fix them because the Tech said they don't have any more of these porros left. I am not going to be able to return them because I got them from a seller on another forum. He has offered to take them back, but I would like to see what can be done because the view on these is simply fantastic. I compared them to a very well known and well thought of $550 roof bino and these Cascades BLEW them and I mean BLEW them away when it came to brightness, resolution and overall clarity.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/06/2010 at 18:23
medic52 View Drop Down
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I have a pair of the 10x42 and I really like them so far............
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/15/2010 at 22:41
stephen b View Drop Down
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Thanks to all for the help, I think I have it  figured out now. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/15/2010 at 23:35
Klamath View Drop Down
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Originally posted by stephen b stephen b wrote:

Thanks to all for the help, I think I have it  figured out now. 
 
 
OK, so what was the problem?  Inquiring minds want to know.Smile
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