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Thread: MB-SUB VB50 Cave review

  1. #31
    Flashaholic
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    Default Re: MB-SUB VB50 Cave review

    Hi Michael,
    Have i done enough advertizing for you now?

  2. #32
    Flashaholic* lucca brassi's Avatar
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    Default Re: MB-SUB VB50 Cave review

    No Goldigger ,


    Now you have to update Scubaboard , DirExplorers , DecoStop , Cave Divers, Rebreather's World , yorkshire-divers , Taucher's Net , Pressluftflacche.de , and then you 'll be relesed from my claws for a while .........till next mission........

    your Michael

  3. #33
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    Default Re: MB-SUB VB50 Cave review

    I've done Yorkshire divers, there's a thread on direxplorers that i could hijack..
    But the DIR guys were pretty clear and said that it wasn't DIR, so they might not be the correct audiance?

    Update
    Direxplorers and scubaboard are now in on the review..

    Michael i expect a xmas present this year if your sales go up..
    Last edited by Goldigger; 05-26-2010 at 04:00 AM.

  4. #34
    Flashaholic* lucca brassi's Avatar
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    Default Re: MB-SUB VB50 Cave review

    Frensel lens : online to buy

    http://www.edmundoptics.com/onlineca...?categoryid=11

    they are really thin ( better translucence ) and don't need to much space
    Last edited by lucca brassi; 05-26-2010 at 06:13 AM.

  5. #35
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    Default Re: MB-SUB VB50 Cave review

    Quote Originally Posted by lucca brassi View Post
    Frensel lens : online to buy

    http://www.edmundoptics.com/onlineca...?categoryid=11

    they are really thin ( better translucence ) and don't need to much space
    Have you ever tried any of the Edmunds aspherical lenses at $35-$45 and compared them to the DX lenses at $2.00?

    I'm wondering how much better they are?

  6. #36
    Flashaholic* lucca brassi's Avatar
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    Default Re: MB-SUB VB50 Cave review

    I want to focus on frensel lens below aspherics lens similar to VB50. There are several typs (aspherics frensel , classic frensel made from glass or acryl) Cheaper acryl with diameter arround 2'' has price 25-29$ that mean 20-24€.

    Yes quality optics is not cheap , but even MB-SUB must have some argumentation for price of head which is 495€ if you want to implement on your system (adapter+cable +VB50) . I think profit there is quite absorbing
    .

    For instance twin cave is much more complicated head for machining , it have two ostar leds which is each expensive at least as one SST-50 , reflectors , solid switching mechanism (instead of ring magnet) then electronics but it is 10€ cheaper !!!

    Have you ever tried any of the Edmunds aspherical lenses at $35-$45 and compared them to the DX lenses at $2.00?

    I'm wondering how much better they are?
    No , but I'm quite sure that quality light is product of common quality (construction of housing , machining housing (thermal managment ), optics, electronics, and hand composing it together). Because of that reason it is very hard for DIY to get same or better results on modified hand flashlights like maglite or similar.
    Last edited by lucca brassi; 05-27-2010 at 12:15 AM.

  7. #37

    Default Re: MB-SUB VB50 Cave review

    Quote Originally Posted by Goldigger View Post
    Hi Michael,
    Have i done enough advertizing for you now?

    Hi Jason,

    thank you for your helpful advertizing.
    Because we are only a small company, we need this kind of advertising.

    Michael
    Last edited by mbsub; 05-27-2010 at 04:34 AM.
    Diving lamps made in Germany
    http://www.mb-sub.com

  8. #38
    Flashaholic* lucca brassi's Avatar
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    Default Re: MB-SUB VB50 Cave review

    I completly understand MBSUB needs on advertising ,because market is small and limited and product has high price , but Germany itself has a lot of scuba lights producers.

    ...but this is in princip DIY forum where people like to analyse products and squeeze out useful information to reduce their cost and made DIY product better if it is possible.

    regards

  9. #39
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    Default Re: MB-SUB VB50 Cave review

    Here's a quick video i took today of the VB-50 along side a Halcyon 21w hid.
    Sorry its not great, but the first opertunity I've had..

    http://www.youtube.com/watch?v=CKaQn2RQ4Co

  10. #40
    Flashaholic* Packhorse's Avatar
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    Default Re: MB-SUB VB50 Cave review

    A bit hard to tell due to angles and distances but it looks like the HID blows it away???

  11. #41
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    Default Re: MB-SUB VB50 Cave review

    Quote Originally Posted by Packhorse View Post
    A bit hard to tell due to angles and distances but it looks like the HID blows it away???
    The Hid gives a more contentrated hot spot, the problem is that the VB-50's beam gets wider over distance and obviously dimmer, where as the hid generally tapers off to a point.
    Personally i think the beam needs to be tighter on the vb-50, at most 6 degrees. this would project a smaller image of the die (square) and hopefully concentrate more lumens into a tighter beam..
    I need to get this down on a moody dark 40m dive..

    Packhorse, have you tried a sst-50 with one of the DX 44mm aspherics?

  12. #42
    Flashaholic* Packhorse's Avatar
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    Default Re: MB-SUB VB50 Cave review

    Not yet.
    Have not had much time tor playing with lights as of late.

  13. #43
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    Default Re: MB-SUB VB50 Cave review

    I took the VB-50 on some 40m dives at the weekend, one buddy had a 24w hid darkbuster. Another had one of the new greenforce heads that uses 4 XPG's.
    The VB-50 blew the greenforce away, the hid had a tighter hot spot, but not loads brighter..
    I was more than impressed with the performance..
    Unfortunalty i have no pictures or video to share with you..

  14. #44

    Default Re: MB-SUB VB50 Cave review

    my gawd the vb-40 is a beautiful light!

  15. #45
    Enlightened
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    Default Re: MB-SUB VB50 Cave review

    Nice work there Goldigger (again) Glad that you bought one as well, since I'm quite lazy and it would've took me ages to get something together to show everyone

    When I can get round to it, might post my images of the vb-50 attached to the photon2 body (no goodman handle) to give a different perspective as well. No beam shots though...

    I'm pleased with it so far, but haven't really had chance to try it out properly yet.

    Quote Originally Posted by Goldigger View Post
    Michael i expect a xmas present this year if your sales go up..
    Me too

  16. #46
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    Default Re: MB-SUB VB50 Cave review

    Quote Originally Posted by Goldigger View Post
    Another had one of the new greenforce heads that uses 4 XPG's.
    tsss... they don't even bother keeping their website up to date... or is it the quadristar P4 using XPG's instead of the P4's?

  17. #47
    Enlightened
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    Default Re: MB-SUB VB50 Cave review

    If these are of interest to anyone, here is some shots of the vb-50 head on the photon2, without goodman handle.






  18. #48
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    Default Re: MB-SUB VB50 Cave review

    Quote Originally Posted by jspeybro View Post
    tsss... they don't even bother keeping their website up to date... or is it the quadristar P4 using XPG's instead of the P4's?
    It's a new head, smaller than the quadristar P4

    New From Greenforce Quadristar XPGH

    Now with Cree XPG LED

    F2 Flexi Battery
    2 Power Settings 50% or 100% Power
    960 Lumens
    10 Degree Beam
    Approx 3 Hours Burn on Max Setting per charge
    Fast Charger 2-3 Hours


  19. #49

    Default Re: MB-SUB VB50 Cave review

    Quote Originally Posted by mbsub View Post
    Hi Jason,

    thank you for your helpful advertizing.
    Because we are only a small company, we need this kind of advertising.

    Michael

    Hi Michael,

    Are you still around?? my VB needs repairing :-) or are you able to advise anyone who can.

    Neil

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