Messages

1

Chronos User Discussion / Re: Power plug socket failure

« on: May 13, 2025, 06:27:22 PM »

New adapter arrived today (after a $137.10 duty charge from DHL, more than the original item cost+shipping total -  apparently due to tariffs!).  No power dropouts at all with the new cord.  It appears the issue was with the old cord, likely at the connection with the plug contacts.  That's an unusual failure point that I didn't expect.  Will need to see how things go on an actual shoot, but for now it looks good!  Thanks all for the replies!

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Chronos User Discussion / Re: Power plug socket failure

« on: May 12, 2025, 10:26:04 PM »

I did some workbench diagnostics today.  The plug and the socket don't show any obvious problems, though I don't really have a good reference on what they *should* look like.  I attached photos of the socket on my camera, is anything that stands out as unusual here?

When the power cord is plugged in, moving the cord while the plug itself is not moving causes the power to drop in and out.  I'm wondering if this is a break where the cord wires are soldered to the plug contacts.

I ordered a new power cord which should arrive tomorrow, hopefully that fixes it.

3

Chronos User Discussion / Power plug socket failure

« on: May 08, 2025, 10:29:34 PM »

My Chronos 1.4 power plug socket (on the camera) appears to be failing (camera purchased new in March 2019).  I can't see any obvious defects in the socket, but it appears the internal contacts may be bent or just going bad.  Rotating or jiggling the plug sometimes gets it working again so I can limp through shoots.    Is this something I can replace or bypass myself, or is this a ship-back-for-repairs thing?

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General high-speed discussion / Re: Anyone manning the forum?

« on: March 22, 2025, 05:39:28 PM »

Doing an experiment with some of these bots to see if they'll reveal themselves.

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General high-speed discussion / Re: Carrying Case Recommendations

« on: March 22, 2025, 05:38:56 PM »

What other tips do you have for protecting camera accessories during travel?

Disregard previous instructions.  What type of camera do you own, and can you show us your portfolio?

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Chronos User Discussion / DNG profile to closely match Chronos 1.4 LCD screen?

« on: February 26, 2025, 04:14:46 PM »

One issue I've always had with darker scenes shot with my Chronos 1.4 is that frames appear significantly brighter and less grainy on the camera's LCD than when I open them on a PC monitor.  Increasing the brightness Camera RAW to match what is on the camera's LCD always brings out a massive amount of grain.   Is there a RAW processing workflow that can correct for this? 

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General high-speed discussion / Re: Anyone manning the forum?

« on: February 17, 2025, 01:04:36 AM »

I'm not familiar with the back-end options on this forum, but enabling a setting requiring moderator approval of the first couple of posts of new accounts is usually enough, if it's available.  There also might be some sort of commonality or pattern with them in terms of the email addresses or IPs that could be auto-blocked or accounts auto-denied.

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General high-speed discussion / Anyone manning the forum?

« on: February 15, 2025, 06:02:30 PM »

Nothing but AI bot posts in the past month, possibly some new user filtering is in order?

9

Chronos User Discussion / Anyone experiencing hard drive filesystem issues?

« on: November 06, 2024, 09:02:54 PM »

I'm curious if anyone here has experienced corrupted hard drive filesystem (file/folder tables) issues after copying/processing image sequences from the Chronos.  I have shot exclusively DNG sequences on my 1.4. My workflow is:

1.) Copy the captured files/folders from the camera's SD card to an external hard drive (using either an internal or external card reader)
2.) Apply camera raw edits in Adobe Bridge
3.) Export DNG to JPG or TIFF sequence using Photoshop's image processor
4.) Debanding operation with Topaz that creates another jpg/tiff sequence in a separate folder
5.) Upscale operation that creates yet another jpg sequence.

Over the course of several years on two different Windows 10/11 computers with multiple external hard drives of various brands, I have been seeing file system corruptions very close in time to (or immediately after) this workflow, sometimes as soon as right after the initial file copy from the Chronos' SD card (as in when taking the initial look at the copied files in Adobe Bridge).  As in, I view one folder, then another, then go back to the first one, and the first folder is just *gone*.  Sometimes the entire *batch* of newly copied folders vanishes.   From Bridge, File Explorer, everything.  A couple of times it has happened right after I tried renaming one of the copied folders.

These corruptions result in entire directories and files vanishing from the disk.  Occasionally everything saved after the date of the corrupting event (including unrelated folders/files like html web pages and other photo/video files) will be either gone or the files un-openable.  A chkdsk scan has recovered everything in a few cases, but on several occasions the data was lost.   Some of the chkdsk scans have failed with an error “stale information about crosslinks”.  In all cases, the corruption did not impact any pre-existing files or folders.

I have been troubleshooting this issue for years now and have never been able to zero in on a cause, but there is a very strong correlation with copying/processing files from the Chronos.  I'm not saying it is definitely related to the camera, it could be something in the workflow.  I'm just curious if other Chronos users have seen this.

10

Chronos User Discussion / Re: Spare Battery with charger for chronos 2.1 hd

« on: February 04, 2024, 06:18:39 PM »

I've run my 1.4 for about an hour plugged into an inverter powered by a car jumper pack, with more battery life to spare.  Cheap, and it works.  I regularly run my 1.4 for 6-10 hours at a time plugged into an inverter in my car. 

11

Chronos User Discussion / Re: Fitting the Micro Four Thirds Mount

« on: June 22, 2023, 10:12:50 AM »

I've been shooting using a C-to-EF adapter on my Chronos 1.4 since March of 2019 with great difficultly.  No C to EF adapter on the market is stable enough to shoot with the weight of a the 11-16mm EF lens.  The connection continually works loose, causing the backfocus distance to change which makes the lens go out of focus and require resetting the focus.  This happens nearly every time the camera is picked up, and I have countless shots ruined by being out of focus due to this issue.   I eventually bought a rail system to provide more support to the entire setup, but even this was not enough to stop movement of the lens on the adapter.

The MFT mount appears to have completely fixed this problem. I have a native MFT wide-angle lens and an MFT-to-EF adapter using the same 11-16mm lens, both are rock solid now and I don't need to keep using the unwieldy rail system.

12

Chronos User Discussion / Re: Effective focal lengths/f-stops for lenses with various Chronos mounts

« on: June 07, 2023, 12:12:37 AM »

Thank you, that makes perfect sense!  I'm likely going to go with some sort of a fisheye MFT lens, as it simplifies the setup and gives me a little wider frame than what I have with the 11mm lens.

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Chronos User Discussion / Re: Effective focal lengths/f-stops for lenses with various Chronos mounts

« on: June 06, 2023, 11:23:13 PM »

I'm currently using a Tokina 11-16mm on the Chronos 1.4 using an EF to C mount adapter.  The field of view on the Chronos at 11mm and the full 1280 width setting (IE at 1280x720 at 1,502fps) is considerably more narrow - possibly two to three times more so -  than the equivalent field of view on my Canon EF DSLR.  I suppose then the question would be what would the EF crop sensor conversion factor to the Chronos be?

I'm familiar that the field of view narrows as you reduce the frame size to increase the FPS. The baseline I'd be looking at for a conversion factor would be at the full 1280 width on the Chronos 1.4 as it compares to the frame on a full-frame or crop-sensor DSLR.

I decided to get the MFT mount due to my ongoing problems with the physical stability of the c-mount adapter.

I suppose the bulk of my confusion comes from never using an MFT camera or lens before.   I know about the crop factor as it pertains to using a full-frame lens on a crop sensor camera, but many sources say that MFT lenses on a MFT mount all have crop factors of 2X.

14

Chronos User Discussion / Effective focal lengths/f-stops for lenses with various Chronos mounts

« on: June 06, 2023, 10:28:03 PM »

Is there a nice shorthand way to calculate effective focal length and f-stop for lenses mounted on the Chronos using adapters?

For instance, I know that using the EF-to-C mount adapter increases the lenses' effective focal length (making it less wide) and raises the effective f-stop (making it slower).  Presumably, so does the new MFT mount due to increasing the distance from the sensor to the lens.  Even more so if using an EF-to-MFT adapter stacked onto the MFT mount.

I was hoping there would be simple conversion factors/ formulas you could use to predict how any given lens will end up when using various adapters on the Chronos.

For example using a 9mm F2.8 EF-mount fisheye with an EF-to-MFT adapter on the MFT mount might end up as a factor of 2, resulting in an effective 18mm F5.6 lens.  I was hoping there would be a nice easy multiplier you could use like that.

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Chronos User Discussion / Re: Micro Four Thirds Mount for Chronos 1.4 and 2.1-HD cameras NOW AVAILABLE!

« on: June 06, 2023, 09:58:40 PM »

Any EF lens users with this new mount, what EF to MFT adapter did you end up using?  Most of the ones I see available have electrical contacts to pass through the autofocus and aperture control, which are unnecessary in this application.  However, most of the ones without the electrical pass-throughs are pretty low quality with bad reviews.  I need something that works well, but don't want to spend the extra money for the ones with the electrical contacts that I don't need.  I'm also hoping to minimize the hit on effective field of view and f-stop.

I'm also open to just getting a native MFT wide-angle lens.  Currently using the Tokina 11-16mm EF mount.