The Spectacles Thread.

[arcturuz]

I think Transition lens are just another way of technology being hyped up.

Our forefathers went under the sun for longer periods than most of us ever do and they never had transition lenses did they? Heck, some of them have even better eye sight than us.

So, at the end of the day do we really need Transition lenses? I personally don't see the need. If i want to shield my eyes, I'll use sunglasses with lenses made by Oakley. Guaranteed protection.

our forefathers didn't have computers and televisions back then

 

[Carnage]

Actually, when we sell photochromatic lens, it's a case of customer asking for it. The option is there as more and more people these days want it for convenience sake. I normally tell people if they want to use in bright conditions, they should get another pair of rx sunglasses. This is not because I can sell more frames but for practical reasons. Let's look at them.

1) Everyone knows that transitions don't turn dark behind a car's windscreen, so they have no added value when driving.
2) They never get dark enough, compared to a ture sun lens, even under the brightest conditions and full UV.
3) Contrary to popular belief, the truth is that even clear lenses with the prerequisite coatings also provide 100%UV, the difference is the amount of light transmission, not UV transmission (99.7% light transmission for clear lenses vs 30% to 99% for photochromatic lens). The photochromatic lenses actually are about 99.5% UV protection because a certain amount must be let in to allow the lenses to tint.
4) Absolute Cost - It gets exponentially higher when customers request for higher index and other features.
5) Relative cost - Prescription tinted lenses with UV coating are not that expensive in comparison and can be tinted to how dark or light the customer wants. If the additional amount cost for photochromatic lenses are put to use elsewhere, the customer can get a thinner, even aspherical lens that are stronger or an even more superior coating.
6) Even though improvements have been made from a few generations ago, photochromatic properties are designed to last the life of the prescription only. What will happen is that after 3 years or so, the speed in which the lens darkens and clears is reduced and in some cases, there is a permanent grey cast to the lens.
7) Their optimum operating temperature is between 15-28 degrees celsius. Not only are said lenses sensitive to UV, they are mucho sensitive to ambient temperature as well. Those who live in seasonal climates will experience that in the summer, the lens are clearer and change much slower while they are darker/ greyish during winter. What this means is that the hotter it is, they worse it will work. Based on Singapore and especially middle eastern climates which can reach 40 degrees, you are actually shortchanged when you buy transitions in these regions.
8) Some customers actually mention that transitions type lenses when activated makes them look "dishonest" and "pervertic". I am not one to judge but there are feedback as such.

Anyone who sells photochromatic lenses and tells you otherwise is either hardselling or he has already a large margin in place on top of what the lab charges.

Your post ought to be made sticky. I bet my last dollar that those walking on the streets wearing transitions know half of those you just posted.

Makes me want to laugh at my friends next time i see them.

 

[Carnage]

Pls lar many things also overhype.. computers is a great example.. our forefathers are better mathematically. ...end of the day do you want to carry 2 specs around..? one normal prescription specs and one presprtiction sun glass? for me too troublesome liaoz.. like to go light

If i need to wear sunglasses, I'll wear contacts.
Point is, how many of us actually wear sunglasses often? Unless you work in the outdoors, you rarely even need that UV protection. Even those people who do sales, don't wear sunglasses. You just don't see as well with shades on.

 

[bangkibong]

Actually, when we sell photochromatic lens, it's a case of customer asking for it. The option is there as more and more people these days want it for convenience sake. I normally tell people if they want to use in bright conditions, they should get another pair of rx sunglasses. This is not because I can sell more frames but for practical reasons. Let's look at them.

8) Some customers actually mention that transitions type lenses when activated makes them look "dishonest" and "pervertic". I am not one to judge but there are feedback as such.

Anyone who sells photochromatic lenses and tells you otherwise is either hardselling or he has already a large margin in place on top of what the lab charges.

thanks for the useful info, don't know most of those.

and the no 8 is soo true, I guess because the lens is not dark enough which make the person look dishonest or pervert. haha.

so are you an optician?

 

[garykerts]

Actually, when we sell photochromatic lens, it's a case of customer asking for it. The option is there as more and more people these days want it for convenience sake. I normally tell people if they want to use in bright conditions, they should get another pair of rx sunglasses. This is not because I can sell more frames but for practical reasons. Let's look at them.

hi bro, i dunno how true is all these u mentioned. But if it really is true, transition sxx..

Opps. I thought u are driving.

Yes, the price difference for Aspheric and Aspheric + Transition is so great that I chose the Aspheric lens over aspheric + transition. And Crizal coating makes the lens easier to clean. Aspheric makes the lens flatter, thinner, better optics quality thus Aesthetic is good and optic quality is good.

Btw, Crizal A2 coating claimed to be scratch resistance, not sure how true it is.

Go for Aspheric lens. Transitions are really overhyped.

Telfon coating is another similar coating to Crizal which Zeiss uses.

thks bro, i think i will go for Aspheric lens as u suggested.

Now hv to consider the brand. The 1st one I "feel" should b best den 2nd etc...
1st: Nikon (ikon HCC coat)
2nd: Carl Zeiss (Lotutec)
3rd: Essilor (Crizal A2)

den if i really nid to block the sunlight, i can buy the other frame i like n put on normal prescription lens n tint it!

 

[Nystalia1990]

hi bro, i dunno how true is all these u mentioned. But if it really is true, transition sxx..

thks bro, i think i will go for Aspheric lens as u suggested.

Now hv to consider the brand. The 1st one I "feel" should b best den 2nd etc...
1st: Nikon (ikon HCC coat)
2nd: Carl Zeiss (Lotutec)
3rd: Essilor (Crizal A2)

den if i really nid to block the sunlight, i can buy the other frame i like n put on normal prescription lens n tint it!

Brand wise, erm... it is preference I would say. Go along with your heart.

Since this 3 brands u mentioned the technology they offered are similar. Pricing wise should not be too far off.

 

[garykerts]

Brand wise, erm... it is preference I would say. Go along with your heart.

Since this 3 brands u mentioned the technology they offered are similar. Pricing wise should not be too far off.

Nikon Aspheric 1.6 - $145
Nikon Aspheric 1.67 -$280

Zeiss Aspheric 1.6 - $240
Zeiss Aspheric 1.67 - $320

quite big diff wor... hmmm... $145 and $320....

as far as i know, 1.6 and 1.67, diff is about + -0.8 mm..

 

[elu]

Your post ought to be made sticky. I bet my last dollar that those walking on the streets wearing transitions know half of those you just posted.

Makes me want to laugh at my friends next time i see them.

True, I wear Transitions and I don't know much of the points being brought up in that post. Ok don't laugh at me

 

[Carnage]

True, I wear Transitions and I don't know much of the points being brought up in that post. Ok don't laugh at me

It's ok dude. Last phrase was just a tease. Alot of technological improvements aren't really needed until we waste money on them.

Just 2 days ago, I found out I could run my rig on 240V PSU, no need simi 600W monster.

 

[Carnage]

Noob question: what are asperical lens?

 

[Nystalia1990]

Nikon Aspheric 1.6 - $145
Nikon Aspheric 1.67 -$280

Zeiss Aspheric 1.6 - $240
Zeiss Aspheric 1.67 - $320

quite big diff wor... hmmm... $145 and $320....

as far as i know, 1.6 and 1.67, diff is about + -0.8 mm..

Comparing 1.67 to 1.67 is not too far off.. haha.

1.6 to 1.67 is quite huge difference.

 

[Nystalia1990]

Noob question: what are asperical lens?

Aspherical Lens is simply mean not spherical lens. Which will have less distortion on the corners, sharper image and better aesthetic on the lens itself (flatter design). And it doesn't magnify or make ur eyes smaller when wearing it.

Aspheric Lens

 

[garykerts]

Comparing 1.67 to 1.67 is not too far off.. haha.

1.6 to 1.67 is quite huge difference.

aiya... i found out one thing today... aspherical lenses is very flat le... not nice!

i tried tag heur f1 today, seems quite nice... den tried fred, porsche design.. hmmm... most of them have curvy lens (rounded shapes), if use asperical (flat) lens, the frame will be bent flat too... becoming like very ugly le... hmmm...

 

[sFerragamo]

aiya... i found out one thing today... aspherical lenses is very flat le... not nice!

i tried tag heur f1 today, seems quite nice... den tried fred, porsche design.. hmmm... most of them have curvy lens (rounded shapes), if use asperical (flat) lens, the frame will be bent flat too... becoming like very ugly le... hmmm...

Good point there but those curve lens are not possible if you use normal lens u have to do base lens to make them that curve.

Members here keen to buy contact lens and spectacles do drop me pm i have good kantao. My location is in the west. New stock of Tag heuer coming in too

 

[sFerragamo]

hi bro, i dunno how true is all these u mentioned. But if it really is true, transition sxx..

thks bro, i think i will go for Aspheric lens as u suggested.

Now hv to consider the brand. The 1st one I "feel" should b best den 2nd etc...
1st: Nikon (ikon HCC coat)
2nd: Carl Zeiss (Lotutec)
3rd: Essilor (Crizal A2)

den if i really nid to block the sunlight, i can buy the other frame i like n put on normal prescription lens n tint it!

If you dont mind going for non branded lens, and they are almost as good as those branded one can get a very very good price for the 1.67 aspheric lens.

 

[garykerts]

If you dont mind going for non branded lens, and they are almost as good as those branded one can get a very very good price for the 1.67 aspheric lens.

how much are u selling for a tag heur 7103 red?

 

[sFerragamo]

how much are u selling for a tag heur 7103 red?

bro gary check ur pm

 

[Carnage]

Good point there but those curve lens are not possible if you use normal lens u have to do base lens to make them that curve.

Members here keen to buy contact lens and spectacles do drop me pm i have good kantao. My location is in the west. New stock of Tag heuer coming in too

SIC kan tao leh.

 

[Tori]

Anybody knows where got carry the Markus T eyewear?

 

[cowculator]

If I remember, my friend at Bras Basah complex has some. Also, a few shops in queensway as well as eyeplay stocks them albeit not the full range.