The Spectacles Thread.

[DouBleB]

dear xiaokaka,

will using hand soap to wash lens daily cause the coatings to deteriorate? Is it actually safe? i've been using dettol handsoap to wash btw. Or will it be sufficient to just rinse our lens with clear water under the tap?

never ever use soap to wash lens as it will damage the coating layer... if its oily wash it with tap water and use lens cloth to wipe...

 

[DouBleB]

the dots are due to the lens manufacturing process, many lens are liketat nowadays, could be due to the coating process. Anyway, as long as you don care & bother abt these dots, they wont bother you either. Unless they start to get into the way of your vision, otherwise just accept them as part of your life

The lens were clear when i first receive it now less than a year many fine dots appear despite using cloth to clear it with tap water and also great care...

 

[Seannie]

Hi

deg of -7 is equivalent to? i am having 500R n 450L ...thats - how much? I am looking at the ducati metal plate series. will 1.67 n 1.74 have any difference?

xiaokaka is expert in oakley u have to ask him. Ur degree is -5.00 & -4.5 la... metal plate size is small so difference could be 1-2mm. However, vision with 1.74 lens may dip slightly at night as index 1.74 allows lesser transmission of light through the lens than 1.67. So you may want to take note if you are into night activities.

In terms of vision, appearance & value for $, 1.67 seems to the best choice & most balanced. Not too exp, not too thick yet still clear enuf.

 

[Seannie]

The lens were clear when i first receive it now less than a year many fine dots appear despite using cloth to clear it with tap water and also great care...

great care & soap-free lens still coating kenaed in less than a year?! hais... in that case why shd i bother abt my new lenses since the coating still gets spoilt. Just change every year la & don get too exp lens in case u heartpain!

 

[RazerDA]

xiaokaka is expert in oakley u have to ask him. Ur degree is -5.00 & -4.5 la... metal plate size is small so difference could be 1-2mm. However, vision with 1.74 lens may dip slightly at night as index 1.74 allows lesser transmission of light through the lens than 1.67. So you may want to take note if you are into night activities.

In terms of vision, appearance & value for $, 1.67 seems to the best choice & most balanced. Not too exp, not too thick yet still clear enuf.

ohh thanks thanks...cheers...i am nt really into night activities n i got spare spec too..cheers

 

[Seannie]

never ever use soap to wash lens as it will damage the coating layer... if its oily wash it with tap water and use lens cloth to wipe...

oh no, your advice too late, there goes my new hoya lenses, i have been washing them with hand-soap since getting them last week

 

[2pm2am]

Hi!

Just got a pair of glasses yesterday with Hoya Nulux 1.60 EYAS prescription lens with SFT coating from a shop at Bras Basah Complex and the lens itself costed S$350.
Didn't realize that there was a scratch on one of the lens as it looks just like a speck of dust until I started cleaning the specs.

Is the lens supposed to be scratched so easily?
Is there any warranty for the lens?
If not, what are the available options that I can take?

Thanks!

your nulux 1.60 SFT cost $350 ??? the recommended price for a pair of Nulux 1.67 SFT cost $350. looks like you been over charged!

no the lens are not supposed to scratched so easily unless you accidentally scrathced it. otherwise, the scratch could have originated from the lab.

 

[2pm2am]

HOYA RX lenses are all std price ard S$550 for 1.67 EP sft coating. Im not concerned whether the lens is special order or not but more to where the edging is done. As i've said, on top of the lens card, i also have the lens packaging given to me which has my specific power printed on it, with all the japanese words. If you look at hoya card it doesnt tell you much except for your lens data, order no. as well as the date. Do you mean that if the lens is made in thailand for example, the hoya lens packaging will still have japanese words printed on it?

How about the patches on the edging surface of the lens the portion where polishing is done? Is it caused by polishing not done properly or not thorough? Is it normal to have such patches/scratches on the polished surfaces? Is this due to the extent of the polishing? By the way, is polishing done manually or the whole process automated by machines similar to edging? Can lens chip easily during polishing?

On elast thing. Is the groove on the lens cut before or after the polishing?

Most of the Hoya lens you got in singapore are either made in Malaysia or thailand. only some lenses are made in Japan.

there should not be patches or scratches on the polished surface. they could be polished marks or polishing is not thorough enough. different lens material will also have different level of shine when polished.

polishing can be done manually or by the machine. if done manually, the level of shine can be controlled. however if done automatically by machines (usually in the same machine that does the cutting), the look will not be as good as done by hand.

the lens will not chip easily during polishing.

as for when is the lens groove being cut, it depends on how it's done. nowadays they have machines that does the grooving and polishing in the same machine. if the grooving is done manually, manual polishing is usually done after the grooving.

if you find that the polishing is not good, go back and ask them to give it more shine.

 

[2pm2am]

In your experience or feedback, usually, based on general usage, how long does hoya lens last? lifespan of the lens before ageing, multi-coating peeling etc occurs & affects the clarity & vision of the hoya lens?

Based on own usage, budget lens usually last between 4 months to one year, max also about 1yr+. Based on hearsay, AO lens also last abt 1yr+

How about hoya standard? 3 years?

Hoya lens, based on my more than 10 years experience selling them ,the coating can last 4 to 5 years or more depending on how you take care of them. however, this would depend on the lens index as well.

 

[RazerDA]

Hoya lens, based on my more than 10 years experience selling them ,the coating can last 4 to 5 years or more depending on how you take care of them. however, this would depend on the lens index as well.

how about crizal advance 1.74?

 

[2pm2am]

Another question for you. Since you are working in a big optical chain store, are your shop's nikon/hoya RX special ordered lenses made in Japan or in other parts of asia? And for these custom-made-in-japan lenses are the edging done in japan as well? Or only the lenses are made in japan/asia ex-japan afterwich they are shipped to local factories for edging & mounting of the lenses?

the hoya company in singapore is like an sales agent or distributor for Hoya. They can source their hoya lens from malaysia, thailand, or japan , or any place they can get the cheapest hoya lens. if say they can get RX hoya lens in thailand for $10, why would they pay $20 to get the same Rx lens from japan ?

as for edging and mounting, most are done in singapore. only for special case like their sensibit drill mount frame , it's done outside singapore because they dont have to machine to do it.

 

[2pm2am]

how about crizal advance 1.74?

I seriously have no idea how good they are because i seldom sell essilor lenses. What I can tell you is, don't believe what they advertise on TV . many consumers misunderstand their adverts or maybe essilor trying to mislead the consumers.

I have consumers coming to me asking for non scratch, dust proof, water repellant lenses after what they saw on TV. fact is, it's only anti dust, anti watermark, anti scratch, anti glare, anti smudge ??? i am not sure what the advertisement meant by "anti" cos you can still get scratches , watermark , dust and glare on those lenses, maybe just less so compared to lenses without those treatments.

 

[RazerDA]

I seriously have no idea how good they are because i seldom sell essilor lenses. What I can tell you is, don't believe what they advertise on TV . many consumers misunderstand their adverts or maybe essilor trying to mislead the consumers.

I have consumers coming to me asking for non scratch, dust proof, water repellant lenses after what they saw on TV. fact is, it's only anti dust, anti watermark, anti scratch, anti glare, anti smudge ??? i am not sure what the advertisement meant by "anti" cos you can still get scratches , watermark , dust and glare on those lenses, maybe just less so compared to lenses without those treatments.

ya i believe it shouldnt be that wonderful though...i myself is a noob..so just asking because is relatively cheaper for the 1.74 range

btw, do you guys know whats the cheapest range of transistion lens for 500R 500L degree?

looking to get another spec with transistion lens though

 

[etil_etanoat]

No one really talks about Tokai lens here?? How's their reputation and coating?

 

[xiaokaka]

dear xiaokaka,

will using hand soap to wash lens daily cause the coatings to deteriorate? Is it actually safe? i've been using dettol handsoap to wash btw. Or will it be sufficient to just rinse our lens with clear water under the tap?

Normally just use tap water to rinse, if its oily or too dirty, use a bit of diluted mild hand soap or just the foam.

Detergents which are too strong will spoil the coating of the lenses.

 

[xiaokaka]

if a consumer with degree of -7.00 is smart enuf, he wouldnt even have consider porsche design metal frame in the first place, becos too big & angular will just make the lens thick no matter how high index u use.

Just imagine, if the resultant thickness for 1.67 & 1.74 are 8mm & 10mm respectively (just an example), would it make any difference? Cos it will just look as thick!!

Comes down to how much the frame can cover the thickness..

There are people who do that. and there are people who doesn't mind thick lenses. 1 example which my collegue's customer. He was only 20 yrs old.

 

[xiaokaka]

xiaokaka is expert in oakley u have to ask him. Ur degree is -5.00 & -4.5 la... metal plate size is small so difference could be 1-2mm. However, vision with 1.74 lens may dip slightly at night as index 1.74 allows lesser transmission of light through the lens than 1.67. So you may want to take note if you are into night activities.

In terms of vision, appearance & value for $, 1.67 seems to the best choice & most balanced. Not too exp, not too thick yet still clear enuf.

-500 and -450 for metal plate using 1.67 quite good already.

If u want it to look cosmeticlly better, 1.74.

If u want cheaper, 1.67.


Not much ppl's eyes are sensitive enough to tell the abberation value(the method to determine clarity value) in various lens.

Look for the lens within your budget and if its looks or cheap u need most.


PS: I only bought 6 pairs of oakley before. SHaring my experience of myself and some complaints from customers. Not a pro or anything. There's still much to learn (Yoda to Obi-Wan) =P

 

[xiaokaka]

great care & soap-free lens still coating kenaed in less than a year?! hais... in that case why shd i bother abt my new lenses since the coating still gets spoilt. Just change every year la & don get too exp lens in case u heartpain!

Sometimes u need soap. Cuz u duno the what substances stucked on to the lenses.

Btw Crizal is a good lens, but not the premium in the market.

 

[xiaokaka]

oh no, your advice too late, there goes my new hoya lenses, i have been washing them with hand-soap since getting them last week

The Optician or Sales guy didnt told u anything about that?

It doesnt mean ur lenses are gone. If u take care of it from now on, it may still last u for 2 years.

 

[xiaokaka]

I seriously have no idea how good they are because i seldom sell essilor lenses. What I can tell you is, don't believe what they advertise on TV . many consumers misunderstand their adverts or maybe essilor trying to mislead the consumers.

I have consumers coming to me asking for non scratch, dust proof, water repellant lenses after what they saw on TV. fact is, it's only anti dust, anti watermark, anti scratch, anti glare, anti smudge ??? i am not sure what the advertisement meant by "anti" cos you can still get scratches , watermark , dust and glare on those lenses, maybe just less so compared to lenses without those treatments.

I sold quite a few Crizals myself.. only the impressed with the Delivery Time and Cost.

i very much believe Hoya, Carl Zeiss and Nikon are above Crizal.

Thats my personal point of view.