mmarian

Lives in Australia Australia
Joined on Aug 12, 2004

Comments

Total: 214, showing: 1 – 20
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I shoot architecture and interiors for living. I used to carry shoobox size wooden box full of color correction Lee filters and polaroid back for my Hassy and the colors in my transparencies of interiors with mixed light sources looked like a dog's breakfast. And I had sleepless nights waiting for the lab to process my films to only collect next day those pathetic looking trannies ( if the film did not get stuck in their processor and did not get ruined altogether which happened occassionally too...) It was sometimes at the point of embarrassing and required lots of explaining to do to get finally paid...
I do not miss film one bit.
But for those street shooters the nostalgia of the uncertainity and dream of discovering one frame on the film reminiscent of Cartier Bresson genius might be what keeps their dream alive...

Link | Posted on Jun 26, 2020 at 21:21 UTC as 135th comment
In reply to:

arhmatic: You don't plan to crash, but if you do (or even attempt a "rough" landing) the camera module will break easily. Disaster waiting to happen. Just bad design. A little cage on the side, with room for the gimbal to move, would have been ideal.

@pNad
Inspire 2 has IMU and Barometer redundancy. Add to it 2 batteries, can safely land if one fails and you can hopefully see the difference...

Link | Posted on May 2, 2020 at 00:14 UTC
In reply to:

mmarian: Pantom 4 and Mavic 2Pro? He is seen holding the Inpire2 drone. So, which one was used for this doco?

Inspire2 on the photo has x5s camera attached. It has M43 sensor and various lenses available. Phantom 4 and Mavic 2 Pro have cameras with 1" sensor and fixed 24mm and 28mm lens respectively

Link | Posted on Apr 23, 2020 at 00:10 UTC

Pantom 4 and Mavic 2Pro? He is seen holding the Inpire2 drone. So, which one was used for this doco?

Link | Posted on Apr 22, 2020 at 22:52 UTC as 5th comment | 3 replies
In reply to:

Reilly Diefenbach: The question arises: is the human race smarter than yeast? I think we know the answer.

Phantom 4 and Mavic 2? He is holding on that photo Inspire2. Just saying..

Link | Posted on Apr 22, 2020 at 22:50 UTC
In reply to:

pro photo 2011: When would 50p/25p video frame rates be useful in NTSC mode?

My Eizo monitor in PAL region runs at 60Hz.

Link | Posted on Apr 11, 2020 at 20:31 UTC
In reply to:

pro photo 2011: When would 50p/25p video frame rates be useful in NTSC mode?

In the same situations where 60/30 is useful in PAL regions.

Link | Posted on Apr 9, 2020 at 01:00 UTC

I wonder how do they make the touch screen of the phone to work through the glass? And the physical home button..

Link | Posted on Feb 15, 2020 at 04:04 UTC as 12th comment | 1 reply
In reply to:

panther fan: And slowly we go back to the Helicopter design. In the end, they will end up with two counterrotating vertically stacked rotors, because that is the most efficient design. But I guess at the moment it is still too expensive to produce those.
We will see who comes up with it first

We are yet to see how agile it is in the air. If you need to change direction quickly or stop fast actuator won't cut it.

Link | Posted on Jan 15, 2020 at 23:31 UTC
In reply to:

panther fan: And slowly we go back to the Helicopter design. In the end, they will end up with two counterrotating vertically stacked rotors, because that is the most efficient design. But I guess at the moment it is still too expensive to produce those.
We will see who comes up with it first

In principle you are right but in reality it is very impractical design. If what you are proposing would have any merit all helicopters would be using your system. But they are not and the one simple reason why is that tilting a large rotating propeller by an "actuator" would require enormous force and doing it fast for swift maneurability is next to impossible, laws of physic apply.. That is why the cyclic with all associated parts such as swashplate etc has been invented for large spinning propellers in helicopters. And that is complex and maintenace heavy...

Link | Posted on Jan 15, 2020 at 21:15 UTC
In reply to:

panther fan: And slowly we go back to the Helicopter design. In the end, they will end up with two counterrotating vertically stacked rotors, because that is the most efficient design. But I guess at the moment it is still too expensive to produce those.
We will see who comes up with it first

With only two coaxial propellers on top of each other you need cyclic controls with swashplate, links, servos etc. Independently controlling the speed of the two motors driving each of the two coaxial propellers only gives you collective and yaw control of the craft.

Link | Posted on Jan 15, 2020 at 20:42 UTC

With motors you can only control the collective and yaw. For cyclic controls you still need swash plate, links, servos etc.....

Link | Posted on Jan 15, 2020 at 20:13 UTC as 20th comment | 1 reply
In reply to:

panther fan: And slowly we go back to the Helicopter design. In the end, they will end up with two counterrotating vertically stacked rotors, because that is the most efficient design. But I guess at the moment it is still too expensive to produce those.
We will see who comes up with it first

Motor or motors is only one part of the coaxial design and probably the least complex. The cyclic controls of the spinning rotors is where the complexity and hence fragility lies...

Link | Posted on Jan 15, 2020 at 19:47 UTC
In reply to:

panther fan: And slowly we go back to the Helicopter design. In the end, they will end up with two counterrotating vertically stacked rotors, because that is the most efficient design. But I guess at the moment it is still too expensive to produce those.
We will see who comes up with it first

Coaxial design is very complex and requires many delicate moving parts such as swashplates, seesaws, links servos etc. The whole idea of multi prop drone design is to eliminate the number and complexity of moving parts which in return makes it more reliable and virtually maintenance free.

Link | Posted on Jan 15, 2020 at 19:37 UTC
In reply to:

Tieu Ngao: Perhaps every drone should have a fail-safe feature that forces the drone to come back to the takeoff point if signals are lost.

All current DJI and I believe most other manufacturer drones do. A problem still can occur when compass is not calibrated for the area of operation. There is also a possiblity of malfunction. Drones of today are extremely reliable and have many safety features build in including obstacle avoidance etc. But s....t still happens. In this case it looks like the operator had plenty of oportunities to respond to FAA letters but he seemed to have ignored the warnings and as a result the case has escalated to the point when he now faces $20,000 penalty. Not much symphaty from me for the way he's hadled the whole incident.

Link | Posted on Nov 22, 2019 at 00:11 UTC
In reply to:

mmarian: I wished DJI with their X5S MFT which apparently has GH5 sensor and perhaps even their processing engine would be half as diligent with their FW updates. Aah well....

It is not the state of mind I find helpful or useful quite frankly but to each his own.

Link | Posted on Nov 20, 2019 at 23:45 UTC
In reply to:

mmarian: I wished DJI with their X5S MFT which apparently has GH5 sensor and perhaps even their processing engine would be half as diligent with their FW updates. Aah well....

@Marek
This is first and foremost photography forum and that is why I feel that sticking to the topic is only fair to all who read it.There are many other platforms where expressing concerns about state of western civilization and direction it is heading might be more appropriate. Deliberately ignoring the original topic and calling it distraction only and keep propagating personal opinions on society, life in general and humanity at large might not be necessarily appreciated by those who come here to learn about photography😉
Even though I personally share many of your concerns I respectfully object to your hijacking of this forum for purposes unrelated to the original topic. That's all.

Link | Posted on Nov 20, 2019 at 23:10 UTC
In reply to:

mmarian: I wished DJI with their X5S MFT which apparently has GH5 sensor and perhaps even their processing engine would be half as diligent with their FW updates. Aah well....

@Marek R
I do appreciate meaningful conversation. By can of worms I meant that the conversation about camera FW updates has been hijacked. While no doubt meaningful, bit of off topic😜. And BTW I do agree that DJI is killing their drones with their functionality restricting FWs instead of improving their capabilities.

Link | Posted on Nov 20, 2019 at 19:19 UTC
In reply to:

mmarian: I wished DJI with their X5S MFT which apparently has GH5 sensor and perhaps even their processing engine would be half as diligent with their FW updates. Aah well....

Hey, relax folks! It was not really my intention to open can of worms here. While I enjoy (mostly) the conversation my point was about the x5s camera FW updates or rather lack of. There is so much which could have been improved and it is pitty that they abandoned it shortly after releasing it. To date it remains the best drone system for the price but there is still a room for improvement for the x5s. If Panasonic can do it why can't you DJI !!?? That is all I really wanted to say and perhaps asked DJI if they happen to read forums like these. Slim chance though...😏

Link | Posted on Nov 20, 2019 at 18:50 UTC

I wished DJI with their X5S MFT which apparently has GH5 sensor and perhaps even their processing engine would be half as diligent with their FW updates. Aah well....

Link | Posted on Nov 20, 2019 at 04:18 UTC as 19th comment | 33 replies
Total: 214, showing: 1 – 20
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