• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Swarovski Price Increase January 1st, 2014 (2 Viewers)

Status
Not open for further replies.
Can I have a vowel, Vanna? ;)

"Rolling Bowl" is a term I coined based on the well known "rolling ball effect." The latter is due to angular magnification distortion and the former to excessive pincushion, but the effect is similar, the image appears to move over a curved surface.

With "rolling ball" it moves over a positively curved surface like a globe (hence, Holger's name for - the "globe effect") whereas with excessive pincushion the image appears to roll through a negatively shaped curves surface such as a bowl.

Both effects are created by the same general principle, the image at the center is a different size than the image at the edges of the field. When the image shrinks at the edges, as it does with angular magnification distortion, the smaller image appears to fade over the edge of a globe. In the case of excessive pincushion, the image appears smaller in the center and larger at the edges. It's the disparity of the image size that tricks the brain (or at least some brains, not everybody sees this) into thinking that the image is moving, which is most noticeable while panning the landscape or tilting the bins up and down a treeline.

Brock


Thank you kindly (Texas phrase)
 
Maybe there is a future for you as a lawyer in a particular city in Germany:-O

Jan

Hhhmmm. Not sure this is much of a compliment :smoke:

Although I do all the cooking in our house so I could be described as top cook, named after a particular city in Germany :eek!:

Leo
 
I think it is "Rolling Bowl" Brock mentions in relation to binoculars with excessive pincushioning at the edges of their view.

Can you cite the the specific individual thread where the word "bowels" appears instead? I would have picked up on that and could not have resisted commenting and if I didn't I must be losing my touch!

Bob

Beautiful! Rolling bowels. I love it! Well, I love the term if not necessarily the condition. I haven't run into that problem with a binocular yet but I haven't really used a binocular after eating particularly spicey food. ;)
 
Beautiful! Rolling bowels. I love it! Well, I love the term if not necessarily the condition. I haven't run into that problem with a binocular yet but I haven't really used a binocular after eating particularly spicey food. ;)

Churning yes, rolling no :t:
 
This stuff falls into the perception is reality. To some, no matter how well a Kowa or Meopta is made it may never be an alpha in their perception, others who are less worried about the caste of the optic may well rate it with or above a current alpha.

You got me here...agreed....

So that begs the question of what is an 'alpha"....is it solely based on price? If the HT would have had a much cheaper price point ($1500 US dollars) ...would we consider that an Alpha and would our impressions of quality, optics etc change due to that?

Or ...flip it...If the Meopta would have a price of $2000 US dollars, would the market consider it an Alpha? jim
 
You got me here...agreed....

So that begs the question of what is an 'alpha"....is it solely based on price? If the HT would have had a much cheaper price point ($1500 US dollars) ...would we consider that an Alpha and would our impressions of quality, optics etc change due to that?

Or ...flip it...If the Meopta would have a price of $2000 US dollars, would the market consider it an Alpha? jim


As for me, I think it should be based strictly on performance, where it's made or how much it cost doesnt enter in to the equation. (world or local economics not withstanding)

Why would how much it cost or where it was made influence anyone?

Perceptions again?

No country has a firm lock on quality, it's just a matter of spending money in design and in manufacturing and seeing it all come together.

I dont mind paying more to see the workers paid a living wage, that's my biggest complaint with China. But I dont see workers in other parts of the world as stupid or unable to build a quality product.
 
Last edited:
I wish they would lock this thread. What a waste of time

Hi Winchester Boy

As well as tech stuff that is good to learn about on here, you will also encounter chit-chat.

Its a socialising thing like a conversation with your neighbour over the backyard fence. Sometimes its serious, sometimes its silly.

Lee
 
You got me here...agreed....

So that begs the question of what is an 'alpha"....is it solely based on price? If the HT would have had a much cheaper price point ($1500 US dollars) ...would we consider that an Alpha and would our impressions of quality, optics etc change due to that?

Or ...flip it...If the Meopta would have a price of $2000 US dollars, would the market consider it an Alpha? jim

Jim,

There was actually a discussion (if you can call it a discussion) over this topic recently; many, including myself, argued that it was overall performance that qualified a binocular as an alpha, others stated prestige, and still others claimed price. It is a variable term with no solid meaning, but when many say alpha, I feel they are implying "best of the best." The reason I say things such as this is because as 'alpha' binoculars age, they should no longer be considered alphas due to increases in optical technology, body construction, ergonomics, etc.

All the best,
Justin
 
Oh shut up. Do you not realize that you are on a UK based forum?
Show some respect or go somewhere else if you can't.

You're not on a hunting forum either.

It's hypocritical of you to complain about going off topic.
You were just talking about hunting scopes on another thread.

Annabeth 2,

I can feel you're falling for him, but is there also a Annabeth 1?
 
AnnaB
I've responded to you many times only to have it yanked.

I don't really think I was offending any UK people. It's the truth isn't it?

As someone with relatives who fought in WW2, yes, of course I (and I expect many other British people) are offended by such lazy condesending drivel when for over a year Britain stood up alone to Hitler. I would also have to whole-heartedly agree with the comment that it was the Red Army that broke the Wehrmacht, however an uncomfortable fact that might be for the Western powers.
 
Status
Not open for further replies.

Users who are viewing this thread

Back
Top