Lens for SK98

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grumpazoid
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Lens for SK98

I have decided to mod my (not as described) fasttech SK98.

With stock components, even when fully extended, the beam widens out at a distance.
I have ordered new led and driver an am looking for recommendations for a better lens. Only thing I could find by searching was recommendations for Kaidomain.

Thanks

MascaratumB
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Take a look at these stores, maybe they have something nice! I’ve bought some TIR lenses and clear lenses from both and had no problem with them so far!

https://www.aliexpress.com/store/219000?spm=a2g0s.9042311.0.0.3KUEdP

https://www.aliexpress.com/store/1242423?spm=a2g0s.9042311.0.0.MZcgQY

Thumbs Up

REVIEWS : Amutorch S3 /  AM S3 vs Neal 219c  /  Amutorch AM30 / Nitefox UT20 / Sofirn SF14 & SP10A / Sofirn SP32A / Sofirn SP10B / Odepro KL52 / Acebeam H20 / SS AAA / Wuben TO10R / BlitzWolf BW-ET1 / Odepro B018 / DQG Slim Ti / XTAR PB2 Charger / Nitefox ES10K / Nitefox K3 / Amutorch AX1 / Amutorch VG10 / Olight M2R Warrior  / OTR M1

Mods and tricks: 1 / 2 / 3 / 4 / 5 / 6 / 7     Convoy S2+ TIR Lenses: XML2 / XPL-HI     Others: Convoy S2+ Mini (Biscotti 3 & 1*7135)     Sofirn K6 Discussion: 1 / 2 / 3    Triple TIR & XP-G2                   MY GIVEAWAY (FW3A) = ACTIVE

DB Custom said: "Hide your billfold, cut up your credit cards... you're a perfect candidate for full blown flashaholism and will soon need dedicated flashlight cabinets. [...] Have fun! Modding is next... :P" 

 

grumpazoid
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Thanks I will check them out.
I’m not too sure how to go about getting the right one for a sk98 zoomie though.

MascaratumB
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grumpazoid wrote:
Thanks I will check them out. I’m not too sure how to go about getting the right one for a sk98 zoomie though.

Do you already have you flashlight? If so, check the diameter of the lens’ basis and you start from there! It is better if you have a caliper, but it can also work with a ruller!
Then, for the height if the lens, do the same thing, measure from bottom to top!

When searching on the stores, you can use the measures as basis for you!

Also, you can check on the forum for other threads of users that have Sk98 flashlights and see if they already have measures!
Another thing you may want to check is about mods of this light, as I think I’ve seen some turning the zoomie into a triple light Wink

Hope it helps Thumbs Up

REVIEWS : Amutorch S3 /  AM S3 vs Neal 219c  /  Amutorch AM30 / Nitefox UT20 / Sofirn SF14 & SP10A / Sofirn SP32A / Sofirn SP10B / Odepro KL52 / Acebeam H20 / SS AAA / Wuben TO10R / BlitzWolf BW-ET1 / Odepro B018 / DQG Slim Ti / XTAR PB2 Charger / Nitefox ES10K / Nitefox K3 / Amutorch AX1 / Amutorch VG10 / Olight M2R Warrior  / OTR M1

Mods and tricks: 1 / 2 / 3 / 4 / 5 / 6 / 7     Convoy S2+ TIR Lenses: XML2 / XPL-HI     Others: Convoy S2+ Mini (Biscotti 3 & 1*7135)     Sofirn K6 Discussion: 1 / 2 / 3    Triple TIR & XP-G2                   MY GIVEAWAY (FW3A) = ACTIVE

DB Custom said: "Hide your billfold, cut up your credit cards... you're a perfect candidate for full blown flashaholism and will soon need dedicated flashlight cabinets. [...] Have fun! Modding is next... :P" 

 

grumpazoid
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Thanks for the tip about measuring with calipers. I will do that. I hadn’t thought about measuring the lens width!
Yes I already have it. Ive got a new led and driver on order. Ive already soldered some copper pennies together and filed them down etc for better heat sinking.

MascaratumB
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grumpazoid wrote:
Thanks for the tip about measuring with calipers. I will do that. I hadn’t thought about measuring the lens width! Yes I already have it. Ive got a new led and driver on order. Ive already soldered some copper pennies together and filed them down etc for better heat sinking.
Thumbs Up I guess it will help you to determine what lens to chose Wink Nice idea about the copper pennies! I did something like that time ago, but didn’t use the best coin to help heatsink Facepalm Well, we always start somewhere, so I guess the copper will be better for that!

Show us your mod when it’s done Thumbs Up Good work with that! Cool

REVIEWS : Amutorch S3 /  AM S3 vs Neal 219c  /  Amutorch AM30 / Nitefox UT20 / Sofirn SF14 & SP10A / Sofirn SP32A / Sofirn SP10B / Odepro KL52 / Acebeam H20 / SS AAA / Wuben TO10R / BlitzWolf BW-ET1 / Odepro B018 / DQG Slim Ti / XTAR PB2 Charger / Nitefox ES10K / Nitefox K3 / Amutorch AX1 / Amutorch VG10 / Olight M2R Warrior  / OTR M1

Mods and tricks: 1 / 2 / 3 / 4 / 5 / 6 / 7     Convoy S2+ TIR Lenses: XML2 / XPL-HI     Others: Convoy S2+ Mini (Biscotti 3 & 1*7135)     Sofirn K6 Discussion: 1 / 2 / 3    Triple TIR & XP-G2                   MY GIVEAWAY (FW3A) = ACTIVE

DB Custom said: "Hide your billfold, cut up your credit cards... you're a perfect candidate for full blown flashaholism and will soon need dedicated flashlight cabinets. [...] Have fun! Modding is next... :P" 

 

dealgrabber2002
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Location: California

How do you remove the head/zooming mechanism to change the LED.

MascaratumB
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dealgrabber2002 wrote:
How do you remove the head/zooming mechanism to change the LED.

The head of the flashlight is made of 2 different parts (exterior)! 1 is the bezel and the other is the “sliding” mechanism. Unscrewing the bezel, it allows to take out the lens, to remove the “sliding” part and to access the pill and the LED.
Normally the pill is screwed in the body of the flashlight, so you just have to unscrew it Wink

Hopes this helps! Thumbs Up

REVIEWS : Amutorch S3 /  AM S3 vs Neal 219c  /  Amutorch AM30 / Nitefox UT20 / Sofirn SF14 & SP10A / Sofirn SP32A / Sofirn SP10B / Odepro KL52 / Acebeam H20 / SS AAA / Wuben TO10R / BlitzWolf BW-ET1 / Odepro B018 / DQG Slim Ti / XTAR PB2 Charger / Nitefox ES10K / Nitefox K3 / Amutorch AX1 / Amutorch VG10 / Olight M2R Warrior  / OTR M1

Mods and tricks: 1 / 2 / 3 / 4 / 5 / 6 / 7     Convoy S2+ TIR Lenses: XML2 / XPL-HI     Others: Convoy S2+ Mini (Biscotti 3 & 1*7135)     Sofirn K6 Discussion: 1 / 2 / 3    Triple TIR & XP-G2                   MY GIVEAWAY (FW3A) = ACTIVE

DB Custom said: "Hide your billfold, cut up your credit cards... you're a perfect candidate for full blown flashaholism and will soon need dedicated flashlight cabinets. [...] Have fun! Modding is next... :P" 

 

sovereignknight
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I’m curious about what lens options are available for the sk98 as well. Let us know what you find and what ends up working well!

https://en.wikipedia.org/wiki/John_3:16 

Flashlights:

x6 Sk68 modded 3 Nichia 319AT, 3 Cree XP-G3 - x1 Solorforce P60 drop in custom XM-L2 U4 1C, Qlight Rev.A 7135*8 3.04A Driver - x2 Lumintop EDC05 CW - x2 Jaxman E2L tripple XP-G2 S4 
x1 Jaxman Z1 Zoomie, Cree MT-G2 Q0 LED - x1 Acebeam K40m thrower with MT-G2 Q0 LED - x1 Xintd SC-82 V5 Limited Edition C8, XM-L2 U4 1C, Qlight Rev.A 7135*8 3.04A Driver
x1 Convoy L6 moded with a Cree XHP-70.2 P2 1D LED - x1 Rare Olight x7 Maurauder with a Nuetral White LED - x1 Astrolux MF-01 Nichia 219c - x1 Astrolux MF-01 Cree XP-G3 - x2 Zebralight SC5w MKII  

x6 Lumintop Tool AA - x1  x2 Lumintop Tool AA 2.0 - x1 Lumintop ODL20C - x1 Lumintop GT mini - Olight i3E EOS - x2 Zebralight SC600w Plus MK IV XHP 50.2 4500k 80 CRI - x1 Fenix CL30R - x1 Lumintop C01 Bike Light

dealgrabber2002
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Location: California

Thank you, MascaratumB

grumpazoid
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Yes when trying to undo the head, the focusing ring turns but not the head itself.

The trick was to remove the lens and brass looking retaining ring that sits on top of the LED. Then you can grip the edge of both parts of the tube with some pliers and it should unscrew. I used a piece of cloth inbetween so as not to scratch anything.

grumpazoid
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MascaratumB wrote:

Show us your mod when it’s done Thumbs Up Good work with that! Cool

So Far I’ve installed a Convoy Biscotti Driver, bypassed the tailcap spring and added the extra copper.
Tests with a luxmeter indicate I have gone from 2150 cd to 5725 cd. That’s Just a bit more that my BLF A6 (nowhere near the overall lumens of course) It gets hotter than the A6 too so I’m guessing the heatsinking is working nicely. Still got new XP-L Hi on Noctigen to arrive. All done with tips from this forum. On the lens front I think I need one with a focal length about 11 or 12mm as this is the movement the lens has from the LED…but no luck sourcing so far.