kb2zuz

Lives in United States United States
Works as a Digital Imaging Specialist
Joined on Jun 6, 2006
About me:

Specializing in Fine Art reproduction, color management, retouching, printing, and digital asset management.

Other jobs I've held in past lives, in no particular order:

Studio and Location Shoot Photo Assistant
Digital Tech
Equipment Rental
Photographer
Photo Lab Technician (Dip & Dunk Film processing)
Durst Lambda and wide format inkjet operator
Retoucher
Design/Layout
Educator
Inkjet Printing R&D

Comments

Total: 177, showing: 1 – 20
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In reply to:

DiffractionLtd: They've had radio-controlled toy aircraft for what, 60 years? Why all of a sudden are they deemed such a threat?

@DiffractionLtd I reiterate, we're not calling for restrictions, but if you're interfering with emergency workers, I believe extreme measures should be allowed. And restrictions do not always increase. Alcohol, gay marriage, marijuana, abortion, all have been completely banned and those restrictions have eased. The difficulty in licensing for commercial unmanned flight has eased (You do not need a commercial aviation license anymore). The difficulty for getting an amateur radio license has eased.

Handguns were once banned in Georgia, that clearly isn't the case anymore. And they have passed safe passage laws to allow a gun owner to pass through states with more restrictive gun laws. They have also passed laws banning any federal registry linking owners to their guns outside of those like fully-auto that require ATF registration.

Edit: I forgot a big one: You used to not be able to brew your own beer at home until 1978.

Link | Posted on Oct 12, 2018 at 21:44 UTC
In reply to:

DiffractionLtd: They've had radio-controlled toy aircraft for what, 60 years? Why all of a sudden are they deemed such a threat?

@A9RIII No I'm not saying for carte blanche. There are already restrictions around airports and I'm not concerned about that. I'm saying if there's a major event (forest fire, really bad highway accident) that requires the skies cleared for emergency workers to do there job, then in that limited circumstance if drone pilots pose a risk and do not respond to calls to clear the airspace, then and only they should they be able to bring down the drones.

Link | Posted on Oct 12, 2018 at 21:41 UTC
In reply to:

DiffractionLtd: They've had radio-controlled toy aircraft for what, 60 years? Why all of a sudden are they deemed such a threat?

No one is saying ban drones. Police are allowed to use spike strips to stop criminals in cars or to keep cars out of areas.

Link | Posted on Oct 11, 2018 at 19:38 UTC
In reply to:

DiffractionLtd: They've had radio-controlled toy aircraft for what, 60 years? Why all of a sudden are they deemed such a threat?

What would happen if a drone hit a plane while flying? https://www.youtube.com/watch?v=QH0V7kp-xg0

Link | Posted on Oct 9, 2018 at 19:33 UTC
In reply to:

lacix: ..and what about falling bullets? :)

Bullets aren't the only way of taking them down. Shotgun pellets aren't very powerful at a distance but it doesn't take much to down a drone and could be sufficient. Some areas have trained hawks to take down drones, or have net-firing guns. Radio jammers and EM devices can disable the electronics. And there can also be GPS based restrictions in commercially available drones that force them to avoid area and could force them to return to home.

Link | Posted on Oct 6, 2018 at 20:42 UTC
In reply to:

Greg OH: I'll bet you 100-1 that this is used to shoot down drones engaged in lawful activity, such as news gathering.

There have been cases where news-gathering drones prevented life-flight helicopters from landing. In those cases I'd be all for shooting it down.

That said I also agree some police chief or mayor is going to overstep their bounds and order a drone they don't like shot down, and I hope if that does happen there will be a case that publicly admonishes them for that. (not picking on police in general, but they are human and there are good and bad in every group)

Link | Posted on Oct 6, 2018 at 20:37 UTC
In reply to:

DiffractionLtd: They've had radio-controlled toy aircraft for what, 60 years? Why all of a sudden are they deemed such a threat?

They're just more common and with digital cameras on them, there have been cases where people fly drones over an accident to get footage, but potentially create a risk for a life-flight helicopter that might be trying to get one of the injured people to a trauma unit. Or posing risk to a police helicopter following a fleeing vehicle or interfering with aircraft dropping water over a forest fire.

Beyond that it's also now easier than ever before to have an aircraft that can be remotely controlled to fly several miles (with video feed allowing them to be not in the general area) and carry a payload which might include a gun, bomb, or other dangerous material. In the past couple years there have been videos of people remote controlling a gun on a drone and attacks in other countries using bombs attached to drones.

It's a complex problem that cannot simply be broken down to privacy vs freedom of press. Nuance is needed to reconcile the risks vs preserving freedoms.

Link | Posted on Oct 6, 2018 at 20:33 UTC
On article First impressions: DJI Mavic 2 Pro and Mavic 2 Zoom (129 comments in total)

Guessing this was from the Hasselblad Experience Store in the village. Isn't Manhattan a big FAA no-fly zone because of the airports and Trump tower?

Link | Posted on Sep 5, 2018 at 04:02 UTC as 11th comment
On article Hasselblad releases pricing for XV mount adapter (52 comments in total)
In reply to:

RGBCMYK: Now if they would just make the sensor 6x6cm the world would be happy again!

Only if you print at a square ratio. If you print (or crop for screen to) 4x6, 5x7, 8x10's or 16:9 ratio you're not using the most of the image circle using a square sensor.

Link | Posted on Aug 30, 2018 at 05:33 UTC
On article Hasselblad releases pricing for XV mount adapter (52 comments in total)
In reply to:

RGBCMYK: Now if they would just make the sensor 6x6cm the world would be happy again!

Yes there will always be waste. But if you print a rectangle (as most people do) from a square sensor inside a circle, you're adding waste on top of waste. Draw a circle. Draw the square inside that circle, now draw a rectangle inside that square and realize if you weren't limited to the square, you could have made that rectangle larger and still fit the ratio inside the circle.

Link | Posted on Aug 29, 2018 at 00:12 UTC
On article Hasselblad releases pricing for XV mount adapter (52 comments in total)
In reply to:

RGBCMYK: Now if they would just make the sensor 6x6cm the world would be happy again!

Yes, the mount is round. But that doesn't mean you can fill a 4x5" frame with a lens made for a Canon SLR. The lens needs to project an image (which also is circular) large enough to cover the diagonal of the frame (the negative or sensor). The lens mount on the Hasselblad H series was designed to cover 645 frames (the diagonal of which is about 75mm) while a 6x6 frame's diagonal is closer to 85mm.

And to your other point about square sensors... you're still wasting a lot of the image area one way or the other. Either you have a sensor bigger than the lens and you're constantly cropping and throwing out very expensive realestate of the sensor, or you've got a square sensor inside an image circle and loose close to a 1/3 of the covered area. Yes that's better than any other rectangular ratio, except if you printing or displaying anything other than a square.

Link | Posted on Aug 27, 2018 at 22:35 UTC
In reply to:

jerryway: It is a shame that Mavic 2 Pro comes only with a 28mm lens, which provides a rather narrow field of view. This is one step back from the original Mavic Pro's 26mm lens, and two steps back from P4P's 24mm lens.

It depends on your use. For me I think it's actually perfect as I'm more interested in using it as a platform for stills for photogrammetry and anything wider than 24mm is detrimental. Also if I want wider angle stills I could probably stitch a panorama. For video users who want the equivalent of a 12mm lens, yeah they're going to be disappointed.

Link | Posted on Aug 27, 2018 at 22:18 UTC
In reply to:

junk1: Found info on filters: "The lens (and gimbals) are not interchangeable, but there is a bayonet fitting on the front of the 1″ version that can take future accessories (filters etc)."
Google that text to find the review by a DJI employee.

A lot of companies send out press releases that are story ready so it's easy for a "writer" to quickly and without much effort make an article from it.

Link | Posted on Aug 27, 2018 at 22:15 UTC
In reply to:

Stefan Sobol: Dolly Zoom works a lot better from a stable platform. The demo video shows the camera moving around quite a bit (too much IMO). Makes the zoom distracting more that unsettling like it is supposed to be.

The sensor is significantly larger than 4k (20MP) so it has enough room for 2x digital zoom

Link | Posted on Aug 27, 2018 at 22:13 UTC
In reply to:

Battersea: The dolly zoom would be a cool feature for point and shoot or compact cameras to have.

Dolly zoom requires moving the camera (hence the term dolly) you need to move the camera smoothly forward and back, smoother than IS would allow for. The drone can smoothly move closer or farther from the subject, how do you get a Point and Shoot or compact to do that?

Link | Posted on Aug 27, 2018 at 22:09 UTC
In reply to:

Scottelly: I'm a little surprised these drones don't do 4Kp60. Much older drones had the ability to shoot 4Kp30, as does every other digital camera and most good smartphones. Why no significant progress? I would have thought 4Kp120 would be coming soon. It seems about time drones get 4Kp60 by now. We see 4Kp60 in a Panasonic still camera, and the GoPro Hero6 has been doing 4Kp60 for months and months now. The fact that these brand new drones don't do it makes me wonder what's going on.

4k60p is pushing a heck of a lot of data that has to be compressed, and yes there are systems that can do it but they require more expensive processors that eat up a bit more battery and might be larger.

Keep in mind that the image quality on either of these drones will get more detail than a go pro (the Hasselblad version has a larger sensor and will resolve better detail with less diffraction and/or lens artifacts and the zoom will let you zoom in for more resolution than a Go Pro has). Not all 4k is created equal and a very sharp 2.7k60p image might look better than a soft 4k60p image.

Link | Posted on Aug 27, 2018 at 22:06 UTC
On article Hasselblad releases pricing for XV mount adapter (52 comments in total)
In reply to:

Elonlukatski: For still life and landscapes these would be perfect. I have the 50mm and the 150mm V mount glass and they are gorgeous image producers.

Larger sensors cost a lot. They make sensors on a circular wafer of a standard size I think around 300mm wide. You're trying to fit square/rectangular sensors onto a circular wafer, the smaller the sensor the number you can fit goes up much higher (not only can you fit twice as many half-sized chips in the same area as a full sized one, but you can fill in the edges better with smaller sensors so you use the space of the wafer more efficiently with less wasted space). On top of that if a single piece of dust lands on the wafer during it's processing, the chip it is on is destroyed... if you can fit 100 smaller sensors on a wafer and 20 larger ones... one piece of dust cuts your production of smaller sensors by 1% while it cuts your production of larger sensors by 5%.

Link | Posted on Aug 21, 2018 at 20:38 UTC
On article Hasselblad releases pricing for XV mount adapter (52 comments in total)
In reply to:

sibuzaru: it really shouldn't be that hard to make an adapter that could cock and fire the leaf shutter

It would probably have to be manually wound like the flexbodies. The shutter in those things took a bit of energy and would kill a battery rather quickly.

Link | Posted on Aug 21, 2018 at 20:00 UTC
On article Hasselblad releases pricing for XV mount adapter (52 comments in total)
In reply to:

RGBCMYK: Now if they would just make the sensor 6x6cm the world would be happy again!

The mount won't work for a 6x6 sensor. It might work for a 53.4x40mm sensor, but it's not designed for 6x6. The current system is based off of the 645 H line (which was taken from Fuji's design) not the 6x6 V line.

Link | Posted on Aug 21, 2018 at 19:55 UTC
On article Hasselblad releases pricing for XV mount adapter (52 comments in total)
In reply to:

PhozoKozmos: 56mm x 56mm (6x6) MF Sensor
79.2mm image circle

56/36=1.55555555 "wider factor" than FF 36x24
36/56=0.642857142

50mm MF lens
has a maximum horizontal (and vertical) fov aov: 58.50° "wideness view"
like a 32.1mm (32.14285714) FF lens

37.33mm f2.178 MF lens
has a maximum horizontal (and vertical) fov aov: 73.74° "wideness view"
like a 24mm f1.4 FF lens

Except the camera doesn't have a 6x6 nor a 36x24mm sensor. It's 44x33mm. Even if they make an upgraded version with the 100MP sensor, it would be 53.4x40mm.

Link | Posted on Aug 21, 2018 at 19:53 UTC
Total: 177, showing: 1 – 20
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