Search found 1241 matches

by mjkzz
Thu Apr 30, 2020 2:55 am
Forum: Equipment Discussions
Topic: Zerene on the RAM disk
Replies: 7
Views: 2190

400*30MB = 12,000MB, divided by 8 = 1.5GB / s . . . that M2 drive is pretty fast, which SSD is it? Samsung 970?
by mjkzz
Sun Apr 12, 2020 6:07 am
Forum: Equipment Discussions
Topic: Zerene : to raid or not to raid ?
Replies: 30
Views: 3762

Yeah, Prime95 is the one. What happened was, just to share it, I had a cool looking CPU heat sink from another project, decided to put it on the i7, the mistake was I simply added some thermal paste over existing leftover (semi-dried up) . . . then it started to crash whenever I ran Zerene After Pr...
by mjkzz
Sat Apr 11, 2020 4:58 pm
Forum: Equipment Discussions
Topic: Zerene : to raid or not to raid ?
Replies: 30
Views: 3762

Yeah, Prime95 is the one. What happened was, just to share it, I had a cool looking CPU heat sink from another project, decided to put it on the i7, the mistake was I simply added some thermal paste over existing leftover (semi-dried up) . . . then it started to crash whenever I ran Zerene After Pri...
by mjkzz
Sat Apr 11, 2020 5:36 am
Forum: Equipment Discussions
Topic: Zerene : to raid or not to raid ?
Replies: 30
Views: 3762

yes, I had thermal issues before with an old i7 CPU running Win 10, and I did not know what was going on, until Rik told me to run a numeric app (sorry I forgot the name of it) . . . so I re-applied thermal paste on the CPU and that fixed the problem.
by mjkzz
Sat Apr 11, 2020 4:49 am
Forum: Equipment Discussions
Topic: Zerene : to raid or not to raid ?
Replies: 30
Views: 3762

ah, the title says Zerene specifically . . . for me, I tend not to buy state of art hardware, here is my solution editing 4K video, maybe it applies to your lightroom situation. I will create a separate post thread with this to avoid hijacking your thread :D I bought an old (10+ years old) Dell R720...
by mjkzz
Fri Apr 10, 2020 9:34 pm
Forum: Equipment Discussions
Topic: Zerene : to raid or not to raid ?
Replies: 30
Views: 3762

my 2 cents, just be careful with RAID 0, if you lose one drive, you lose all, basically you increase the chance of losing all data, not a good idea as storage configuration or to archive images over a long run. One way to speed up stacking process is to run multiple copies of Zerene [edit] just read...
by mjkzz
Fri Mar 27, 2020 3:41 pm
Forum: Equipment Discussions
Topic: Building an LED light/flash
Replies: 92
Views: 7879

...as relative meter, ie, I do not trust its absolute reading, but relative one... Yep, correct, I'm doing like this way already, using Iphone app, and it gives pretty good idea ...and want to build your own light meter... No way, no time for that :) Or just use a light meter for photography, like ...
by mjkzz
Thu Mar 26, 2020 9:00 pm
Forum: Equipment Discussions
Topic: Building an LED light/flash
Replies: 92
Views: 7879

Early lunch . . . :D Here is a video How to measure lumen . . . These lux meters are cheap, I have one, but I use it as relative meter, ie, I do not trust its absolute reading, but relative one -- if it says 1000 at one condition, then says 500 in another, I would be more than happy to accept that a...
by mjkzz
Thu Mar 26, 2020 3:19 pm
Forum: Equipment Discussions
Topic: Building an LED light/flash
Replies: 92
Views: 7879

...Just be aware that some of the LED lights are over rated (like they use 60W LED but claim 100W, or 100W LEDs but claim 200W -- this is the funny part, they claim the extra power is due to reflector effect)... Hi Peter, Is this with Aliexpress type brands only, or well known (Cree, Osram,Philips)...
by mjkzz
Wed Mar 25, 2020 1:40 am
Forum: Equipment Discussions
Topic: Building an LED light/flash
Replies: 92
Views: 7879

It is so cool and not cool at same time, to work at home, so much interruptions and temptations of not doing work work :D :D Did a video using that 100W LED, I am surprised that a single LED can be so powerful, even after bouncing lights, I can still get good result. No flickering . . . many part of...
by mjkzz
Wed Mar 25, 2020 1:25 am
Forum: Equipment Discussions
Topic: Building an LED light/flash
Replies: 92
Views: 7879

The heatsink is cool and looks like a car engine manifold, hot rod LED COB!! Fans are usually a problem, here's a Godox 150watt 16,000 lumen Video Light where the fan is reported as too loud, so it's vibrating something. https://www.bhphotovideo.com/c/product/1342001-REG/godox_sl150w_5600k_150w_led...
by mjkzz
Tue Mar 17, 2020 7:40 pm
Forum: Equipment Discussions
Topic: Building an LED light/flash
Replies: 92
Views: 7879

chris_ma wrote:love the heat sink :)
thanks. the fan is problematic for high magnification work due to vibration and air flow, but there are cool looking (if that is a factor for you) liquid CPU heat sink

Anyways, back to work soon, no time for this anymore. :cry:
by mjkzz
Tue Mar 17, 2020 2:01 am
Forum: Equipment Discussions
Topic: Building an LED light/flash
Replies: 92
Views: 7879

OK, things are getting back to normal, albeit slowly and my holidays are almost over, too :( Got the reflector delivered, this is a 100W "driverless" LED with CRI of 95+. Anyways, to contribute something concrete, here it is. Key point is to look for "driverless" LEDs where you can simply put it on ...
by mjkzz
Tue Mar 10, 2020 8:12 pm
Forum: Equipment Discussions
Topic: Building an LED light/flash
Replies: 92
Views: 7879

One last thing, there is something called numerical analysis where you do not need an equation, as long as you have some empirical data (ie, the charts, the chart), you can compute it. Again, with that chart, you do not need an equation whether it is Shockley Equation, or Schottky, or even Einstein,...
by mjkzz
Tue Mar 10, 2020 7:52 pm
Forum: Equipment Discussions
Topic: Building an LED light/flash
Replies: 92
Views: 7879

THIS ACTUALLY IS THE BASE of my suggestion that you can not use it on all LEDs and I kept calling out for the LED model you used in your "circuit". Peter, If the "circuit" you reference is the "Fast LED Strobe for Macro" thread https://www.photomacrography.net/forum/viewtopic.php?t=40999 This is cu...