Recent Posts

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91
Chronos User Discussion / HDMI support
« Last post by 1022mm on March 18, 2019, 01:42:01 PM »
Hello all, sorry for being the annoying newbie, but I have a question regarding HDMI.  Is it currently supported?  The manual says it's not active yet, but the latest firmware specs say it should be enabled now.   I tried two monitors - both see the camera (monitor input shows an active signal) but the screen is black for both live and playback.  Is there a setting I need to toggle?   I couldn't find anything myself.  Thank you!
92
Chronos User Discussion / Re: SSD rig parts list
« Last post by 1022mm on March 17, 2019, 07:36:13 AM »
I just saw that the Chronos store now has a SSD that is all ready to go:

https://www.krontech.ca/store.html#!/SanDisk-250GB-SSD/p/133345530/category=24447029

Ordered one :)
93
Chronos User Discussion / Re: Infinity focusing in the dark
« Last post by 1022mm on March 16, 2019, 09:08:46 PM »
I bought the Computar (kit) lens with the camera, but have found it to be quite soft at the wide end.   I'll check out some of the C-mounts to see if there is a better wide-angle option than my 10-22mm, which so far seems to work OK with sharpness over the whole image.
94
Chronos User Discussion / Re: SSD rig parts list
« Last post by Martin on March 16, 2019, 08:28:07 PM »
Hi,

since the Chronos has an esatap port and seems to be fastest when saving like this, finding a portable/compact case with esatap seems to be slightly more difficult..

You can see the differences between esata and esatap ports here:

https://i.stack.imgur.com/wITiZ.jpg
(esatap seems to have those 4 holes in the middle, which is most likely just a visual guide. More recent laptops sometimes have those, esatap is always a combined USB/esata port.)

I only found 3 external casings with esatap support doing a quick search and ONLY for 2.5" HDs, no M.2/NVME cases with esatap... ;(

I'll be ordering this one and will report back:

https://www.fantec.de/produkte/speicherprodukte/festplattengehaeuse/25-zoll-festplattengehaeuse/produkt/details/artikel/1692_fantec_225u3esatap_6g/

Hope that was somewhat helpful.
Martin
95
Chronos User Discussion / Re: Infinity focusing in the dark
« Last post by Martin on March 16, 2019, 07:29:04 PM »
Hi,

also, don't use fullframe DSLR lenses with simple mount adadpters :)

You'll lose A LOT of light that way. You'll just illuminate the area around your sensor.. ;)
I started like that as well, but, for example, speedboosting lenses more closely engineered to your sensors dimensions (iirc it's a ~2/3" sensor or ~8.5x6.5mm) like MF43, Nikon1, Pentax Q(?) OR using native C/CS-mount lenses will make things quite a bit brighter :)

You can get good, not too expensive, f/0.95 native lenses for CS-mount, I paid 190 Euros/~214 USD early last year for a Schneider Xenon 25mm. Image quality improved simply because of more light hitting the sensor!

Have fun!
96
Software Dev / Saved file's owner/group/permissions.
« Last post by nik282000 on March 16, 2019, 04:15:18 PM »
I am using ext3 so I can save >4gb files but the permissions made by the camera are pretty wonky. Is there a way (even if it's a one off change I need to make to my own camera) so that I can change the user and group that the files are saved under? I'm reasonably familiar with Linux and don't mind making backups of my OS microSD in case I brick something.

If there is no easy way then no worries.

Thanks for your awesome work!

-Nick
97
Chronos User Discussion / SSD rig parts list
« Last post by 1022mm on March 16, 2019, 02:58:33 PM »
I'm looking for some guidance on what is necessary to get my Chronos set up with a SSD.   I went to a large computer parts store (Micro Center) but got blank stares from the techs when I showed them what I was trying to accomplish.   

The problem apparently is that the eSata cable doesn't support powering the drive through the camera port.   On another thread, I saw an eSata-p cable mentioned, but I couldn't find such a thing being sold nor did anyone at the store know what it was.

I'm a bit of a newbie when it comes to eSata, so I might just be missing something simple.   Does anyone have a parts list of what they used to get a SSD setup working with the camera?  Thank you!
98
Chronos User Discussion / Re: Infinity focusing in the dark
« Last post by 1022mm on March 16, 2019, 02:52:52 PM »
Thank you very much, that is tremendously helpful!  I had to really crank up the exposure to get the distant lights to show up, but that definitely worked.   I'm sure it will be even easier with the external monitor. Thanks again!
99
Chronos User Discussion / Re: Infinity focusing in the dark
« Last post by nik282000 on March 15, 2019, 04:17:52 PM »
If you set your Chronos to 30fps you can increase the exposure enough to let you focus. After you set the focus put the framerate back up to what you intend to record.
100
Chronos User Discussion / Infinity focusing in the dark
« Last post by 1022mm on March 15, 2019, 03:58:50 PM »
I'm a new Chronos user that will be doing some outdoor shoots this spring and summer.  Some at night (things like fireworks and hopefully some lightning strikes).   I'm using mainly Canon lenses with a EF-mount to C mount converter.

I've done a few trial runs at night, and I'm running into some difficulties with focusing.   Low-light scenes don't show up with enough clarity to focus using the Chronos LCD screen.   With my DSLR, I can get a nighttime infinity focus lock using things like distant streetlights and car lights, these are things that understandably won't show up at all on the Chronos LCD.  I have an external monitor on order, but I'm assuming it won't show much either.   I've tried getting a focus lock using my DSLR, then moving the lens over to the Chronos without any success.  I've also tried doing a daylight focus at infinity, then marking the focus ring on the lens for later.  The problem is that some of my lenses' focus rings are electronic without hard stops, meaning that marking the ring at a certain position doesn't guarantee that the internal focusing mechanism will actually be in the same position later.

Would it be possible to adjust the Chronos backfocus to exactly match my DSLR? That way I can focus a lens using the DSLR, then transfer it to the Chronos.   Right now that's my best idea, but wondering if anyone else had any other methods that have worked for you.
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