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Search: Posts Made By: elkcub
Forum: Swift Today, 04:53
Replies: 14
Views: 496
Posted By elkcub
Sorry folks, I deleted the post after looking...

Sorry folks,

I deleted the post after looking at current eBay listings. It seemed to me that I couldn't expect to get enough out of my HR/5 specimens to make selling them worthwhile. That, and...
Forum: Binoculars Friday 20th April 2018, 21:06
Replies: 30
Views: 517
Posted By elkcub
Well, then, it's easy enough to contact SONA and...

Well, then, it's easy enough to contact SONA and find out: SWAROVSKI OPTIK N.A. Ltd. 2 Slater Road Cranston, RI 02920 /
[email protected]

The customer service number used to be...
Forum: Binoculars Friday 20th April 2018, 19:59
Replies: 30
Views: 517
Posted By elkcub
A cautionary note. Keep in mind that Swarovski...

A cautionary note. Keep in mind that Swarovski Optik North America (SONA) is the sole importer and distributor for Swaro products in the USA. They will know by serial number that your product was...
Forum: Conservation Saturday 7th April 2018, 21:01
Replies: 698
Views: 41,569
Posted By elkcub
Response to #697 So, instead of saying: you...

Response to #697

So, instead of saying:
you meant to say: "... the sign [of the trend line] was actually negative..."

I'm a pretty serious guy when it comes to applied statistics, so pardon me if...
Forum: Birds & Birding Friday 6th April 2018, 23:02
Replies: 6
Views: 351
Posted By elkcub
Hi Mikal, You got me, at least partially. ...

Hi Mikal,

You got me, at least partially. Actually, here's the sequence that I observe, which is somewhat ambiguous because the video was spliced in several places:
Clearly, pre-learned behavior(s)...
Forum: Birds & Birding Friday 6th April 2018, 04:11
Replies: 6
Views: 351
Posted By elkcub
It does seem to be pretty impressive, and...

It does seem to be pretty impressive, and possibly says something about a crow's cognitive ability. However, based on the u-tube narration, the crow was trained earlier on each of the component...
Forum: Nikon Thursday 5th April 2018, 03:32
Replies: 24
Views: 1,351
Posted By elkcub
You might be thinking of "spherical aberration of...

You might be thinking of "spherical aberration of the exit pupil," which is often associated with a "kidney bean" effect.

Ed
Forum: Conservation Wednesday 4th April 2018, 04:20
Replies: 698
Views: 41,569
Posted By elkcub
Hi Calvin, Yup, couldn't agree more. But, then...

Hi Calvin,

Yup, couldn't agree more. But, then again, nobody said it would be easy. ;)

Ed
Forum: Conservation Monday 2nd April 2018, 19:30
Replies: 698
Views: 41,569
Posted By elkcub
Not so!! The prospect of discovering significant...

Not so!! The prospect of discovering significant interaction effects (positive or negative) with known carcinogens could lead to important new insights. Scientific thought often involves 'clutching...
Forum: Conservation Sunday 1st April 2018, 05:47
Replies: 698
Views: 41,569
Posted By elkcub
How can a p-value ...

How can a p-value (http://www.dummies.com/education/math/statistics/what-a-p-value-tells-you-about-statistical-data/)be negative, since it's a number between 0 and 1?

Something isn't right.

Ed
Forum: Binoculars Monday 26th March 2018, 20:10
Replies: 51
Views: 2,531
Posted By elkcub
Good thinking! Now that you're rested, the...

Good thinking! Now that you're rested, the optics of the eye, eyeglass, and binoculars actually become 'coherently coupled' and behave as system. In this way, the eyeglass prescription influences...
Forum: Binoculars Monday 26th March 2018, 04:01
Replies: 51
Views: 2,531
Posted By elkcub
One possible explanation is that you're...

One possible explanation is that you're nearsighted. Are you?

Ed
Forum: Binoculars Tuesday 20th March 2018, 22:19
Replies: 37
Views: 996
Posted By elkcub
... imagination. 8-P Ed

... imagination. 8-P

Ed
Forum: Binoculars Monday 19th March 2018, 18:28
Replies: 27
Views: 810
Posted By elkcub
This quote is taken from Opticstalk.com...

This quote is taken from Opticstalk.com (http://www.opticstalk.com/topic280_page1.html).



Ed
Forum: Binoculars Tuesday 13th March 2018, 04:25
Replies: 213
Views: 6,984
Posted By elkcub
In principle, I wouldn't be surprised. Ed

In principle, I wouldn't be surprised.

Ed
Forum: Binoculars Tuesday 13th March 2018, 04:04
Replies: 213
Views: 6,984
Posted By elkcub
Hi Tenex, I did say: "So, other factors held...

Hi Tenex,

I did say: "So, other factors held equal, e.g., magnification, FOV, etc., the instrument with a longer focal length objective will necessarily have better image quality."

Of course, if...
Forum: Binoculars Tuesday 13th March 2018, 03:31
Replies: 213
Views: 6,984
Posted By elkcub
Hi Henry, The way I've thought about it, the...

Hi Henry,

The way I've thought about it, the added resolution (and fewer aberrations) of the Zeiss 8x56 is primarily due to its objective lens having a longer focal length and smaller f-ratio (at...
Forum: Binoculars Tuesday 6th March 2018, 04:22
Replies: 9
Views: 544
Posted By elkcub
Your instinct was correct. :t: Welcome to...

Your instinct was correct. :t:

Welcome to Birdforum!

Ed
Forum: Conservation Wednesday 21st February 2018, 05:19
Replies: 698
Views: 41,569
Posted By elkcub
No one can say that a particular case will turn...

No one can say that a particular case will turn out one way or the another because of EMR. Research conclusions, such as the Kaiser study, simply inform us of the percentage change in probability...
Forum: Binoculars Tuesday 20th February 2018, 03:08
Replies: 83
Views: 3,939
Posted By elkcub
Arthur, Okay, that explains it. Best...

Arthur,

Okay, that explains it.

Best regards,
Ed
Forum: Binoculars Tuesday 20th February 2018, 00:38
Replies: 83
Views: 3,939
Posted By elkcub
Hi Arthur, Past tense suggests that you no...

Hi Arthur,

Past tense suggests that you no longer have the Zeiss Classic?

Ed
Forum: Binoculars Monday 19th February 2018, 18:28
Replies: 83
Views: 3,939
Posted By elkcub
David, One of the major factors is saccadel eye...

David,

One of the major factors is saccadel eye movement (https://en.wikipedia.org/wiki/Eye_movement):


Ed
Forum: Conservation Saturday 17th February 2018, 23:33
Replies: 698
Views: 41,569
Posted By elkcub
Also note this recent study supported by the...

Also note this recent study supported by the Kaiser Foundation entitled: "Exposure to Magnetic Field Non-Ionizing Radiation and the Risk of Miscarriage: A Prospective Cohort Study."

Ed
Forum: Conservation Saturday 17th February 2018, 21:50
Replies: 698
Views: 41,569
Posted By elkcub
Hi Diana, Just thought I'd mention that I did...

Hi Diana,

Just thought I'd mention that I did read the Sarah J. Starkey paper and found it well written and rather interesting. She may not be the most published scientist in the world, but based...
Forum: Conservation Saturday 10th February 2018, 20:34
Replies: 698
Views: 41,569
Posted By elkcub
Diana, Sorry to say I was not able to attend...

Diana,

Sorry to say I was not able to attend the meeting due to personal issues. Regarding the MWN article:



My only comment here is that if the study were properly blinded, the A and B...
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