AlanG

Lives in United States Silver Spring, United States
Works as a Photographer
Has a website at www.goldsteinphoto.com
Joined on Mar 3, 2003

Comments

Total: 574, showing: 1 – 20
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On article DJI goes portable with the Mavic Pro (76 comments in total)
In reply to:

princecody: To Karma or not to Karma is thee question?!

The Karma is GoPro's first drone and we don't know what the flying experience is like. Whereas DJI has pioneered most of the technology for fight control, gimbals, HD video transmission, collision avoidance... you name it.

Link | Posted on Sep 28, 2016 at 12:44 UTC
On article DJI goes portable with the Mavic Pro (76 comments in total)

DJI is doing some amazing things.

Link | Posted on Sep 27, 2016 at 21:08 UTC as 34th comment
In reply to:

Keith Cooper: Interesting but what about that Laowa 24mm f14 relay 2:1 macro lens?

@ Tosellu... there are optical facts at play that you need to investigate.

Link | Posted on Sep 27, 2016 at 15:05 UTC
In reply to:

Keith Cooper: Interesting but what about that Laowa 24mm f14 relay 2:1 macro lens?

When you extend a lens far enough to magnify 2 times you quadruple its distance from the sensor compared to infinity focus. Hence the focal length is increased compared to the same lens focused at infinity. 1:1 reproduction requires doubling the focal length. 2:1 requires 4 times the focal length. This is a basic lens formula: 1/focal length = 1/image distance+1/object distance.

Link | Posted on Sep 27, 2016 at 01:14 UTC
In reply to:

Keith Cooper: Interesting but what about that Laowa 24mm f14 relay 2:1 macro lens?

At 2:1 magnification a 24mm lens on a 24x36 format will have a focal length of 96mm.

Link | Posted on Sep 26, 2016 at 14:27 UTC

They've really nailed the cheap look of some Spiratone lenses from the 50s and 60s!

Link | Posted on Sep 26, 2016 at 04:19 UTC as 2nd comment

Besides for beginners, I think there is a role for this. I have several drones for aerial stills and videos. I built one specifically to carry a GoPro 4 in order to get fisheye stills and videos to supplement my other shots. So this would have been a simpler, cheaper, and more convenient option for me.

Link | Posted on Sep 21, 2016 at 14:09 UTC as 1st comment
In reply to:

jkokich: My iPhone 6s Plus has fantastic stabilization built in. This is pretty much useless.

So if you walk around with your iPhone, let alone run with it, the camera will stay pointed in the same direction, with smooth fluidity as you turn it and the horizon will be level all the time.

Link | Posted on Sep 2, 2016 at 16:08 UTC

My wall has three non-working old SLRs on metal brackets I bent from a sheet of thin aluminum in about a minute.

Link | Posted on Aug 29, 2016 at 20:59 UTC as 23rd comment
In reply to:

Dheorl: I wish they'd give it an hdmi out so it can be used with proper screens.

Dheorl, you may be right that they could have done more especially for a pro version with the X5. I don't use the Osmo but fly the Inspire. The Lightbridge video is very solid and responsive. Consider that it is being broadcast a long distance from a flying copter. So wireless works well.

It seems to me that an HDMI outlet in the handle would have been possible. They just have to tap into the signal that is going from the camera into their wifi transmitter. Maybe they can add a new handle someday. They make an adapter for the Phantom remote controller that added an HDMI socket so it can't be a technical issue.

Link | Posted on Aug 26, 2016 at 20:45 UTC
In reply to:

Dheorl: I wish they'd give it an hdmi out so it can be used with proper screens.

It could be done wirelessly. The 720 HD information is transmitted via Lightbridge technology using the same camera on the DJI Inspire. That signal goes through the radio remote controller which has a USB connection to the phone/tablet and also has an HDMI port for external monitor or goggles.

The Osmo uses wifi directly to the cell phone instead of Lightbridge but I don't see why support electronics and an HDMI socket could not have been placed into the handle. Some cellphones have HDMI output via USB so maybe that could work.

This is marketed as a small inexpensive system and DJI probably did not think many would want to use it with a cellphone for control and also have an additional monitor. DJI offers the Ronin series for those who need more.

Link | Posted on Aug 26, 2016 at 14:56 UTC
On article Striding Forth: Canon EOS 5D Mark IV Review (1919 comments in total)
In reply to:

photoshack: Being that I'd used Canon (largest investment, lots of lenses), Sony A7S II, Fuji X100S I have always gone back to FF Canon bodies. I don't care about GPS but could see why travel guys would need it, I don't care about Wireless (I had it, found it clunky and too slow to actually use and chewed battery.) Occasionally I use a Camranger on the Canon for wireless previews, long exposure but really that is more of a toy.

So while people are slamming Canon for its sticking with DSLR form-factor using that old mirror and being "big", I really don't see the problem...the others cannot compare when you are looking for the results. Granted I have looked at Nikons with some envy, but to me they are the real competitor not mirrorless consumer cameras.

So this IV seems like a good upgrade for those who need those features, and the extra MP and ISO range is very good.

I have the Sony A6000 and love that it is small and light. But once I use an adapter and put heavier lenses on it, my hand hurts after a while as only a few of my fingers can grip the body. So the larger Canon 5D bodies are much more comfortable to hold and use with any lens that has significant weight.

The same would apply to the A7 bodies, but there is an optional larger grip for that model so you have small and larger options in the same camera.

Link | Posted on Aug 25, 2016 at 17:31 UTC
In reply to:

Morpho Hunter: Yawn. Does anyone really care about what Canon (and indeed Nikon) do anymore .. especially now that the MK II version of the Olympus OMD EM1 is about to be released .. with it's 40+MP (hand held) high resolution mode. Dunno .. guess there must still be a few die-hard Canon/Nikon guys out there.....:)

I have 3 Sony mirrorless APS-C cameras and they are certainly good enough for my personal photography and many of my assignments. I like the ergonomics of the Canons more and as an architectural photographer, I use full frame bodies, PC and TSE lenses (along with others.)

@Fujica... law of nature? View camera WA lenses use a graduated center filter that cut 2-3 stops.

My point about this sensor design is that if Canon can make a sensor that allows for non-telecentric lenses to work well, then there are more options for lens design... including smaller WA lenses that can be of a traditional non-retrofocus design. There has been steady improvement of sensors along these lines and this is another step.

This was possible with film cameras... look at the 35mm f2.8 lens of the Olympus XA full frame. It is tiny and is very close to the focal plane. Leica and other RF lenses are small but the Leica Ms require special FF sensors and digital correction to get acceptable results.

Link | Posted on Aug 25, 2016 at 17:14 UTC
In reply to:

Morpho Hunter: Yawn. Does anyone really care about what Canon (and indeed Nikon) do anymore .. especially now that the MK II version of the Olympus OMD EM1 is about to be released .. with it's 40+MP (hand held) high resolution mode. Dunno .. guess there must still be a few die-hard Canon/Nikon guys out there.....:)

Maybe Canon's approach is to hold off on moving from DSLRs to mirrorless until they can make some smaller lenses for the new cameras. This kind of sensor may allow for that. As a Sony mirrorless and Canon DSLR user, I still like using my Canons.

Link | Posted on Aug 24, 2016 at 02:25 UTC
In reply to:

AlanG: I can't understand why individuals want to be in the private funding business. If these companies and individuals won't put up their own money or can't find, friends, relatives, banks, or VC companies to risk their money on these ideas, maybe there is a reason.

Yes I know there are lots of people on Kickstarter asking for money. Why do people give it to them if the risk/reward ratio is poor or unknowable?

Link | Posted on Aug 10, 2016 at 14:31 UTC

I can't understand why individuals want to be in the private funding business. If these companies and individuals won't put up their own money or can't find, friends, relatives, banks, or VC companies to risk their money on these ideas, maybe there is a reason.

Link | Posted on Aug 8, 2016 at 20:46 UTC as 50th comment | 2 replies

In the larger picture of technology, we're not innovating that much today... mostly just improving existing products. There is much less incentive for someone to replace their old flat panel tv with a new model than there was going from a b/w tv to color, or from washing dishes in a sink to having a dishwasher.

Link | Posted on Aug 3, 2016 at 16:05 UTC as 75th comment | 2 replies
In reply to:

Bart2016: Whats it matter. The photographer decided to give her photos for free and someone else is making a dollar of of it. Highsmith is not a good business woman giving it away for free to begin with. All of a sudden someone else is charging for it, Oh well. With as much time on the Earth as you have get over it and admit the error to begin with. If she thought her work had value she would have charged for it even $1 a image.

Bart2016... did you read the case? Highsmith is suing because other people got charged or threatened by Getty for images they had a right to use for free. She is not complaining that Getty took advantage of her, but of other people. And I suspect that Getty did this with other public domain images too.

I do agree that photographers hurt the profession by low balling or by giving away photos. As a long time photographer, former ASMP chapter president, former ASMP national director, and APA member, I could tell you countless examples.

Carol Highsmith got her start by photographing the restoration of the historic Willard Hotel in Washington DC for free... in order to publicize herself. Of course the hotel could have afforded to pay to hire a top architectural photographer for this.

She was not an established photographer at that time and several other architectural photographers in the region felt that was a non-professional thing to do that hurt the profession.

Link | Posted on Jul 30, 2016 at 03:26 UTC
In reply to:

AlanG: The article does not clearly explain the legal issues involved. ANd it could be much more complicated than you would think. I'm assuming that instead of infringement this is mostly about Getty presenting itself as the copyright owner. That violates the Digital Millennium Copyright Act.

There are not many cases for precedent on that and it will be very interesting to see, because I have a suit pending trial on the DMCA also. We are looking for other examples and I'll see if we can contact Carol to learn from her.

If anyone else has a DMCA or similar copyright case, please get in touch with my attorney. (Listed at the end of this link:)

http://www.prnewswire.com/news-releases/the-rights-of-photographers-to-images-used-in-the-real-estate-industry-need-to-be-protected-300128466.html

Yes Steve. I never expected a detailed explanation here. My lawyer is studying the case and the legal opinion of Judy Ginsburg that was linked in another post.

Link | Posted on Jul 29, 2016 at 21:08 UTC
In reply to:

Tariag: She didn't have much damage... Reputation? Hard to value...
Those who have had damage, are those who paid the licence to use pictures that should have been free.
Getty should refund them. Period.

Yes the case is complicated and I can't say that I am qualified to understand it or give an opinion... other than to say that many posts on this thread don't add to my knowledge.

My understanding is there have not been many DMCA claims so we have to see how this one goes.

Link | Posted on Jul 29, 2016 at 17:35 UTC
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