really struggling with paint inspection / swirl detection

mc2hill said:
And as the others have said, the darker the `room` the better the light will work to show any defects.
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Noting that I`m one of the guys who belabors that point, it *is* easier said than done depending on the situation. Oh had I just considered that a bit more when I designed the shop :o
 
SWETM said:
The most important specs as I have understand it is the CRI. It`s suposed to be cri 95. Saw that one light that was linked to in the thread had cri 97. So don`t know if it`s a difference to the better with a higher cri value. Scangrip has their lights at CRI 95.

One light that can reveal swirls good are the yellow/orange kind on gas stations and parking lots. Especially white and silver and those other lighter shades. Wonders if something like that light can be used as a second inspection on the paint. The sun is still best but don`t available all of the time.
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I would disagree about the sun being the best. myself, along with several other well know details have seen plenty of defects under inspection lights that can`t be seen under the sun.

CRI is Color Rendering Index. Scangrip was originally used in body shops for color matching paint, which is where CRI matters. In terms of inspecting paint for defects I feel CRI is less important. I`ve compared the 3M Sungun with a CRI of 97 to the Fenix PD35 and it didn`t do as well at showing DA haze as the Fenix with a CRI of 92.
 
I prefer to have white walls and ceilings so that I can see all the other things better when not doing paint correction...
I just use Scangrips, CATS, and a great pair of 500w halogens, on stands, (except for the CATS) and still manage to get it all clear and glossy..
Perhaps If I had room to spare, and had a separate room for correction only, I might think about trying out darker wall paint..
Dan F
 
RaskyR1 said:
I`ve compared the 3M Sungun with a CRI of 97 to the Fenix PD35 and it didn`t do as well at showing DA haze as the Fenix with a CRI of 92.
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It *is* kinda funny how some defects show up *great* under the SunGun while others (often more "normal" issues) don`t.
 
Stokdgs said:
I prefer to have white walls and ceilings so that I can see all the other things better when not doing paint correction...
I just use Scangrips, CATS, and a great pair of 500w halogens, on stands, (except for the CATS) and still manage to get it all clear and glossy..
Perhaps If I had room to spare, and had a separate room for correction only, I might think about trying out darker wall paint..
Dan F
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100% agree!!! A simple flip of the light switch and I have a dark room, no need to compromise other things just for paint correction. ;)
 
RaskyR1 said:
I would disagree about the sun being the best. myself, along with several other well know details have seen plenty of defects under inspection lights that can`t be seen under the sun.

CRI is Color Rendering Index. Scangrip was originally used in body shops for color matching paint, which is where CRI matters. In terms of inspecting paint for defects I feel CRI is less important. I`ve compared the 3M Sungun with a CRI of 97 to the Fenix PD35 and it didn`t do as well at showing DA haze as the Fenix with a CRI of 92.
Click to expand...

Maybe was a generalsation from me. With what most use their wall mounted lights or a cheaper flash light with well under the 90 CRI. As a home detailer. With different inspection light you have a better way to spot different defects.

Wondering if there is a sweet spot with the CRI value to catch a larger amount of different defects?
Think I have read somewhere that it`s recommended to have a CRI value above 90. Or what specs of a light would you be looking at to spot paint defects with?

I have also thought about getting a light with the orange color they have in the parking lots.

Just got my Scangrip Sunmatch light home. Will be intresting to see how it compares to the Sonax Pen Inspection light I have. The silver metallic car I have and the white and light grey metallic cars I maintain is hard to see with the lights I have gotten so far. The Sonax Pen light has been working the best so far. Think it`s the same as the Rupes one. But wonders if it`s the same light bulp as the Scangrip Pen light.
 
Post-Adventures in Ophthalmological Surgery :o I find that I need a *LOT* more light to do pretty much everything. Whole different ballgame from where I was five years ago, let alone when I designed/built the shop.

RaskyR1 said:
A simple flip of the light switch and I have a dark room...
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Oh man, I`m envious...my combo of cathedral ceiling and "gee that looks nice" windows adds up to a lot of sunlight getting in during daylight hours. Any practical fix would be more than I want to get into (for something I only care about every however many years), but if I were doing it over I`d sure that topic more thought..
 
Mike lambert said:
I’ve found I really haven’t had to compromise on any of the other tasks we do in the shop.
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Sorry, wasn`t directed at you. When I designed my garage I wanted it to be nice and bright because it`s a garage first and detail shop second. I don`t do many interior jobs now days but I wanted it bright for when I do. I also do all my own mechanical work so it`s nice having it bright for that as well. It`s pretty amazing how much a darker color on the walls, ceiling, and floor can change the light in a room. Just redoing my floor with color chips made it noticeably darker looking then with the solid light grey I originally had.
 
SWETM said:
Maybe was a generalsation from me. With what most use their wall mounted lights or a cheaper flash light with well under the 90 CRI. As a home detailer. With different inspection light you have a better way to spot different defects.

Wondering if there is a sweet spot with the CRI value to catch a larger amount of different defects?
Think I have read somewhere that it`s recommended to have a CRI value above 90. Or what specs of a light would you be looking at to spot paint defects with?

I have also thought about getting a light with the orange color they have in the parking lots.

Just got my Scangrip Sunmatch light home. Will be intresting to see how it compares to the Sonax Pen Inspection light I have. The silver metallic car I have and the white and light grey metallic cars I maintain is hard to see with the lights I have gotten so far. The Sonax Pen light has been working the best so far. Think it`s the same as the Rupes one. But wonders if it`s the same light bulp as the Scangrip Pen light.
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My Swedish Brother Tony !
I hope all is well with you and your family !

I have the 2 of the Scangrip (Denmark) MultiMatch lights and they have a CRI of 95.. The Kelvin is 4500k.
So, as you can see, they are not the highest of either rating, but they work really good..
And as you already know so well, some lights do not show defects best in silver, lighter color paintwork...

I remember those orange colored lights under the roofs if some gasoline stations !
Im trying to remember what they were called, but they are still used in California along stretches of freeway, usually around the exits..

Perhaps they called, something-halide????

Yes, they really show paintwork extremely well when under them...
Believe the idea, way, back when, those came out, was an efficient cheaper to run, lasts way way, longer lightbulbs...
Dan F
 
SWETM said:
Maybe was a generalsation from me. With what most use their wall mounted lights or a cheaper flash light with well under the 90 CRI. As a home detailer. With different inspection light you have a better way to spot different defects.

Wondering if there is a sweet spot with the CRI value to catch a larger amount of different defects?
Think I have read somewhere that it`s recommended to have a CRI value above 90. Or what specs of a light would you be looking at to spot paint defects with?

I have also thought about getting a light with the orange color they have in the parking lots.

Just got my Scangrip Sunmatch light home. Will be intresting to see how it compares to the Sonax Pen Inspection light I have. The silver metallic car I have and the white and light grey metallic cars I maintain is hard to see with the lights I have gotten so far. The Sonax Pen light has been working the best so far. Think it`s the same as the Rupes one. But wonders if it`s the same light bulp as the Scangrip Pen light.
Click to expand...

I think a lot of those gas stations and parking lots use metal halide bulbs, at least the older ones. The volume shop I worked at back in the day uses them and the do show swirls and other defects well.
 
Accumulator said:
Post-Adventures in Ophthalmological Surgery :o I find that I need a *LOT* more light to do pretty much everything. Whole different ballgame from where I was five years ago, let alone when I designed/built the shop.



Oh man, I`m envious...my combo of cathedral ceiling and "gee that looks nice" windows adds up to a lot of sunlight getting in during daylight hours. Any practical fix would be more than I want to get into (for something I only care about every however many years), but if I were doing it over I`d sure that topic more thought..
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Mi Hermano, El Accumulator` !
I KNOW the things you are saying about the eyes... :)
Hope you have received care that improves the condition..

My eye surgeon just told me I have a few cataracts going on now and that contributes to less night vision as well.. :( I knew something was up!!
But he also said when/if it gets bad enough, he can do laser surgery that will make it all better.. :)

I also found out one eye needed astigmatism contact lens correction, and that alone really helped my overall vision.. Yippee !!!
Dan F
 
RaskyR1 said:
Sorry, wasn`t directed at you. When I designed my garage I wanted it to be nice and bright because it`s a garage first and detail shop second. I don`t do many interior jobs now days but I wanted it bright for when I do. I also do all my own mechanical work so it`s nice having it bright for that as well. It`s pretty amazing how much a darker color on the walls, ceiling, and floor can change the light in a room. Just redoing my floor with color chips made it noticeably darker looking then with the solid light grey I originally had.
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^^^^^^^^^^^^^^^^^^ + 1

I also do a lot of mechanical work inside this same place for me and other people, so need all the light I can get to see better for that type of work...

And you know, if I can get the vehicle outside first, to Detail the entire Interior, that Always, works better for me.. Nothing can ever show up as much Inside the vehicle, for me, than good old Sunlight...
Dan F
 
Stokdgs said:
Mi Hermano, El Accumulator` !
I KNOW the things you are saying about the eyes... :)
Hope you have received care that improves the condition..
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Heh heh, it was basically a matter of "can we get it working again?" and I do indeed have vision. The New Normal sure isn`t swell, but it beats blindness even if it does uhm...impose limitations.

My wife just finished the "stay face-down 24/7" part of her latest eye repair recovery period, and oughta be driving by the end of the month or so. Thought we`d get through this year without anybody going under the laser, but nah...always something.

Having vision is something I basically took for granted before, not so much now.

My eye surgeon just told me I have a few cataracts going on now and ...he can do laser surgery that will make it all better..
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Yeah, the fix is quick and easy...as long as nothing goes haywire later. I put off cataract surgery until one eye was basically useless, when I finally had it done that was what precipitated the Big Problem four months later. Hoping to put it off in the other eye as that`d almost certainly cause the Big Issue there too.

Glad you got the astigmatism corrected, I`ve been dealing with that since I was a kid.
 
RaskyR1 said:
I think a lot of those gas stations and parking lots use metal halide bulbs, at least the older ones... do show swirls and other defects well.
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Yeah, that`s it. IIRC the other old type, the"funny colored ones", are maybe Sodium Vapor lights or something like that.
 
Accumulator said:
Heh heh, it was basically a matter of "can we get it working again?" and I do indeed have vision. The New Normal sure isn`t swell, but it beats blindness even if it does uhm...impose limitations.

My wife just finished the "stay face-down 24/7" part of her latest eye repair recovery period, and oughta be driving by the end of the month or so. Thought we`d get through this year without anybody going under the laser, but nah...always something.

Having vision is something I basically took for granted before, not so much now.



Yeah, the fix is quick and easy...as long as nothing goes haywire later. I put off cataract surgery until one eye was basically useless, when I finally had it done that was what precipitated the Big Problem four months later. Hoping to put it off in the other eye as that`d almost certainly cause the Big Issue there too.

Glad you got the astigmatism corrected, I`ve been dealing with that since I was a kid.
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Hermano Accumulator` ,

Wow laser cataract correction needs 24x7 stay face down????? Oh no.... :( I hope your Sweetheart gets through all of that just fine... Prayers for you both from me...

None of this stuff sounds much like fun... And think of all those "early" years we just abused our eyes and thought nothing of it.. :)

Thanks for the "warning" of things that may come, I guess.... :)

Perhaps one thing that may be pretty good to come out of all this, is that one may qualify for the Blue card that hangs from the mirror and allows parking in front.... :)
Hope you guys get better...
DanF
 
Stokdgs said:
..Wow laser cataract correction needs 24x7 stay face down????? Oh no.... :( I hope your Sweetheart gets through all of that just fine...
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Nah, not the cataract surgery, but rather laser surgery to repair damage to the macula (also for moderate/serious retina repair). Accumulatorette somehow developed holes in her maculas; I had retinal tears and a detachment that also tore my one macula. My recovery was easy, I had to stay *upright* for a few weeks (face up/down depends on where the repair is).

The cataract surgery is easy-peasy, and if it does *not* precipitate any retinal issues then that`s that, problem solved with minimal downtime....basically a nonevent IMO. Just ask your Doc about it the chances of those issues down the road so you know where you stand.

And sigh...no joy on the Blue Card for this one.. not that I think I`d use it anyhow (another of those things I can be, uhm...funny...about).

OK, back to your originally scheduled program....just didn`t want Stokdgs thinking that recovery from cataract work would be a huge PIA.
 
all this talk about gas station lighting is actually what motivated me to get better lighting in my garage. the new and upgraded stations around me all have amazing, white LED fixtures. I was seeing things at night getting gas that are barely noticeable any other time.

when I priced out what those fixtures go for, I nearly fell over, so basic LED strips in the garage and some good working lights do the trick.
 
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