Chosun Juan
Given to Fly
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When will the current alphas become 'obsolete' (1 Viewer)
- Thread starter jremmons
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Chosun Juan
Given to Fly
Gijs, Vespo, I don't drink coffee (except sometimes a bit of raw iced, or liqueur - Kahlua' , but even then it has to be diluted with 2× milk so that it just tastes like a big caramel milkshake! :eat: B
). When I was doing Tae-Kwon-Do and training in professional shooting, and through biofeedback and mindfulness, I was able to lower my heart rate to ~30bpm taking roughly 1 breath a minute. Then a slightly higher breath rate allowed precise trigger control afer exhalation between even heartbeats. I use similar techniques when I want to eek every last bit of stability and resolution out of my binoculars.I think because my current injury is spine related - it's sending the nervous system a bit haywire, and besides, stability is not good at the moment. A good excuse to go back to the magnificent location and try again. When I am able to carry the load, I will even check with my camera.
Yes, I already have the 8×43 Zen-Ray ED3 --- so best ergonomics in the business right there
........ :cat:Yes, this is what I do when my binos and eyeballs run out of puff - take a picture at 1200mm(eq) ~24× and then zoom in from there ...... often it will tell you whether you are looking at a stick/rock/shadow, or a bird!
Quite beastly (2.7kg=6lbs) to carry around though - give it a dozen or so years, and the lightweight digital bino option will be here.
Chosun :gh:
P.S. Gijs, and everybody else --- HaPpY NeW YeAr !!!
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Technical stagnation in binoculars, but continued good progress in imaging systems surely prefigures a shift in birding practices.
Even today, rarities are suspect without photographic proof, so it is no stretch to envision a birding future where imaging supersedes observation.
We may look back at current practices with the same bemusement that we today look back at the shotgun based ID methods of Audubon and his contemporaries.
Vespobuteo
Well-known member
The validity of the term "photographic proof" will probably fade with the same speed that AI is developing unfortunately and photos can't be trusted anymore.
Meanwhile "enjoy" this creative photographers anteater-scam:
https://petapixel.com/2018/04/30/a-closer-look-at-the-stuffed-anteater-photo-contest-scandal/
:t:
WJC
Well-known member
WJC
Well-known member
Haha :-O that's the secret to a long life Bill - keep breathing ! o
I recently shared my retirement plans with my friend Cory Suddarth (Suddarth Optical Repair) and he relayed HIS retirement plans to me:
“When I stop breathing ... I’m retired.” :cat:
Bill
You raise a serious point.
Hopefully the judges ability to analyze photos will improve in line with our ability to fake them.
WJC
Well-known member
When I was 14, my father taught me:
"Don't trust ANYTHING you hear and only HALF of what you see." :cat:
Bill
tenex
reality-based
Yes, I'm sure you're right. The alphas must exceed that standard, but by how much?
We've just acquired a different Nikon 24-70 for our new Z6 cameras, again with one ASPH element. (The front elements are collapsed in this diagram and extend out for use.) Leica of course have been using ASPH for years already, at least in camera lenses. Perhaps the cost of such elements -- I think they're usually molded, rather than ground -- has recently been reduced somehow.
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Vespobuteo
Well-known member
I'm sure they could but binoculars are so much harder to test in an "objective" way than camera lenses. Most customers are probably happy with an average performing bin.
Nikon's Z-mount and lenses is another good example of optical quality improvements.
Some might even say it's a leap, at least in edge sharpness.
The pressure from medium format systems becoming cheaper (fujifilm) is a driving force here i suspect.
For binoculars not much seems to have happened after the introduction of ED-glass and field flatteners?
:smoke:
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WJC
Well-known member
BINGO! 'Should have been more specific. :cat:
Gijs van Ginkel
Well-known member
Mark9473, post 112,
Meopta is one of the largest optics producers in Europe and among that many binoculars and telescopes for the civilian and the military market as I could see with my own eyes when I visited the company.
Gijs van Ginkel
Meopta is one of the largest optics producers in Europe and among that many binoculars and telescopes for the civilian and the military market as I could see with my own eyes when I visited the company.
Gijs van Ginkel
Here is what Milos Slany of Meopta Optika, Czech Republic, said about the ISO Standard (Norm) in my interview with him:
ISO standard governing high quality binoculars
T: It has been said that ISO 14133-2, governing the performance of high quality binoculars is not at all demanding. Do you agree with this, and in particular, do you think the resolution requirements are ambitious enough?
M: Strictly speaking the standard is not especially demanding but the fact is if you produce a binocular which exceeds the resolution requirement, the image which reaches the retina will not bring better resolution because the standard is already equal to the best resolution the average human eye can produce. BUT. While this standard is used by Meopta, resolution is really just one small part of the perception of optical performance. Contrast is really very important too and there are many other parameters which must be taken into account. In fact there is no single figure that can define or summarise optical performance so Meopta uses many and these include not only resolution but Modulation Transfer Function, Strehl Ratio, as well as measurements of several aberrations and of course light transmission.
Lee
Meopta USA is part of the international company.
https://www.meopta.com/en/about/
"Meopta is an international company with a long rich tradition of developing, manufacturing and assembling world class optical, opto-mechanical and optoelectronic products."
https://www.meopta.com/en/about/
"Meopta is an international company with a long rich tradition of developing, manufacturing and assembling world class optical, opto-mechanical and optoelectronic products."
Vespobuteo
Well-known member
"Strictly speaking the standard is not especially demanding but the fact is if you produce a binocular which exceeds the resolution requirement, the image which reaches the retina will not bring better resolution because the standard is already equal to the best resolution the average human eye can produce"
That do sound pretty low.
In that case 50% of users actually would benefit from better resolution than the ISO standard states.
Thats even lower than I thought.
If 50% of shoes in the store did not fit because the lack of accuracy in the sizing system, it would be pretty crazy.
Wouldn't it?
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