Messages

1

Share Your Videos / Re: Shadow on the moon

« on: April 10, 2020, 06:30:48 AM »

The depht of field is very large, if you saw the first second there is a bird that fly up in the image and is totally recognizable, so a Sattellite or meteorite should be look more sharp, not fainted or "out of focus" look.
Anyway, today i was recording the moon...again...and notice something when some clouds pass in front of the moon. The clouds leave a sort of trail with little vapour dots that look identical to the one that i record in the video posted: fainted, blurry, "out of focus"...so, for me the mistery is solved.

Thanks everyone for the help!

2

Share Your Videos / Shadow on the moon

« on: April 09, 2020, 03:47:17 AM »

Hi!, i just wanna know if anyone can help with the video that i record last night on the supermoon.
The equipment used was a Canon Ti5, canon 70-200 F4L + Canon Extender 1.4x + Canon Extender 2.0x.
Obviously i used Magic Lantern with 3x crop and custom white balance.

The first part of the video is the original and aprox at 14sec you can see a fainted shadow crossing from the upper-left
in diagonal to the center of the image.

The second part of the video is a 200% upscaled.
The third part of the video is a 200% upscaled and 50% slow down with optical flow in premiere.
The fourth part of the video is a 400% upscaled, 50% slow down with optical flow in premiere and with an added circle tracking the shadow.
The fifth part of the video is a 400% upscaled, 25% slow down with optical flow in premiere and with an added circle tracking the shadow. 


Any thoughts?

3

Reverse Engineering / Re: UHS-I / SD cards investigation

« on: June 07, 2018, 09:05:29 PM »

Had anyone tried the hack with this one??

4

Share Your Videos / Testing SD speed hack on my 700D

« on: April 24, 2018, 05:35:34 PM »

Some test footage, using SD speed hack.
I use the Canon 700D and the Kit lens 18:55 STM
(Sorry for the sloppy edit, for some reason i couldnt get a smooth video preview on Adobe premiere ¡?)

Some of my settings::

-SD Speed hack (69mb write on my Sandisk Extreme pro)
-RAW VIDEO 14 BIT LOSSLESS at 16:9
-Crop video

Open files with MLVProducer, then imported to Adobe Premiere

5

Share Your Videos / Eclipse solar anular, Raw recording @ 10 bit

« on: February 27, 2017, 03:51:48 AM »

Testing my canon 700D raw recording at 10 bit and 1738x864px 

6

General Chat / Re: Convert analog camera into digital?

« on: June 08, 2016, 03:46:52 AM »

Yeah, it might be scam or might be not, but i think that he is pointing to the "Nostalgia" feeling, to the weekend photographer, even if the camera couldn't give the better images or the technical difficulties inherent in old technology, i guess they would love to use their antique cameras with new technology in it...if the price is right...$150 or $200...who knows.
Anyway, i don't know if i would buy it either but consider the idea interesting. 

7

General Chat / Convert analog camera into digital?

« on: June 06, 2016, 02:58:38 AM »

I was reading about a proyect called PSEUDO, that is trying to convert any analog 35mm film camera into a digital one.
I thought, besides the challenge of doing it, it's a great idea if they can achieve their goal.

You can see more information in their website http://pseudofilmcanister.tumblr.com/

Just want to know what you think about it,....pros and cons?

Cheers!!

8

Share Your Photos / Re: Focus stacking

« on: September 08, 2015, 09:32:51 PM »

This will give you about 3:1 magnification and therefore an effective aperture of about
(m + 1) * f = (3 + 1) * 14 = 56
If you go pixelpeeping you will find some amount of softness caused by diffraction. If you want to use your shots in larger format and want to preserve detail you might want to use smaller aperture numbers.
Not a problem with smaller representations like the one shown above.

Thank you walter!, i notice that too (diffraction) but i didn't understand it until your explanation
Im shooting now with an aperture of  f3.5.
Here's my latest try:

9

Share Your Photos / Re: Focus stacking

« on: September 08, 2015, 07:46:38 PM »

Could you provide some info, eg: lens, aperture number of slices etc etc.

Of course!

Camera: Canon 700D
Lens: Canon 100mm F2.8 + 3 tube extensions(36mm+20mm+12mm)+ 1.4X extender
Aperture: f/14
T: 0,3 sec.
Iso: 6400
Slices: 19
Light: Natural
Post: Lightroom and Photoshop

10

Share Your Photos / Focus stacking

« on: September 07, 2015, 11:48:41 PM »

A macro shot of a needle and thread using focus stacking

11

Share Your Videos / Using rack-focus

« on: September 07, 2015, 03:54:13 AM »

Just a mini-clip to learning more about rack-focus.