February 28, 2015, 02:19:15 AM

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Messages - Don Haines

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1
Canon General / Re: RIP Leonard Nimoy
« on: February 27, 2015, 03:09:17 PM »
"We are assembled here today to pay final respects to our honored dead. And yet it should be noted, in the midst of our sorrow, this death takes place in the shadow of new life, the sunrise of a new world; a world that our beloved comrade gave his life to protect and nourish. He did not feel this sacrifice a vain or empty one, and we will not debate his profound wisdom at these proceedings. Of my friend, I can only say this: Of all the souls I have encountered in my travels, his was the most... human. Rest in Peace, Mr. Spock."

2
Photography Technique / Re: Game Ranches for photography
« on: February 27, 2015, 01:55:38 PM »
Game farms have a real use.  I don't want 100s or 1000s of people out in the wilds stressing animals, perhaps causing them to abandon their young.  No picture is worth the animal's life (or yours - but you can control the latter in most cases).

There is a fine line between game farms and animals that are free but are regularly feed/protected or baited.  How do you honestly label the latter?
I agree and unless they are abusing the animals, its gives far more people the opportunity to see/photograph animals than would be possible or responsible to do in the wild.  It's the captioning that is important, at least to me.  I don't think people would think any less of a photo if they knew it was at a game farm upfront, but I think they would be very disappointed if I tried to pass one off as wild and they found out I was lying.

The whole attractant thing is another matter.  If it's a man-made watering hole or a bird feeder that supplements natural food and water sources, I don't think that's a huge deal, but if people use bait, or game calls, that's going too far, IMHO.  It may take animals away from doing activities they need to survive, teach them to become dependent on humans, or in the case of large predators, teach them associate humans with food.  Note, that is humans=food, not humans=creatures who feed us. 

Finally, if it were me, I would caption a photo of a bird, even if the feeder wasn't in the frame, something like "Blue jay visiting my backyard bird feeder".
Personally, I do not think that I have to explain that these chickadees have been baited into a spot where it is possible to take a reasonably close picture of them.....

3
Lenses / Re: EF-S 17-55mm f/2.8 Going Away?
« on: February 27, 2015, 01:43:54 PM »
It is a great lens that sells well and has no equivalent..... I can't see it going away unless it was replaced with a newer version.

4
Abstract / Re: Frost on the window
« on: February 26, 2015, 05:43:27 PM »
At -17F frost usually forms on the windows.

MudbrookPhoto.Com

That is one gorgeous photo! Welcome to the forum :)

5
Third Party Manufacturers / Re: Sony Doing Glasses
« on: February 26, 2015, 09:14:18 AM »
I expect to see licensing and huge penalties for misuse required coming in the next 2 years.

That's the problem - if I see your drone flying over my garden with my gf sunbathing topless, I can (try to) track you. But how do I know your hud glasses are only showing you the way to the next bus stop, and not recording me?

As far as I remember, Google was forced to remove the silent (or eye-controlled) picture snapping feature from their firmware in Germany. But when there's a demand, there'll be a supply ... unless it's illegal like "concealed carry" in parts of the country of our big brothers (pun intended, sorry, cannot help it :-p).

Unfortunately, in the paranoid world we live in, you are probably already being recorded... security cameras at the bus stop, in the bus, traffic cameras, security cameras at the front of each business you walk past... and how many governments are recording what we type on this forum????

http://www.extremetech.com/extreme/110873-new-spy-drone-has-1-8-gigapixel-camera

6
Photography Technique / Re: Game Ranches for photography
« on: February 23, 2015, 09:55:04 AM »
In the local birding community there is a big controversy going on about baiting owls. People will pay a lot to get Snowy Owl pictures, so "photography guides" take them to an area where the local birds have gotten used to handouts from the humans. They wait until the owl notices them, then release a live mouse for the owl to swoop down, capture, and eat.... all within a few feet of the photographers.... and of course, these pictures are passed off as snowy owls in the wild....
Some even use fishing poles and reel a mouse (dead, I hope) across the snow/ice to entice the owl...
I found out how well that works by accident. I was in the back yard playing with the cat... I had a catnip mouse on a fishing line and I would cast it and the cat would chase it. A barred owl took the catnip mouse.

7
Photography Technique / Re: Game Ranches for photography
« on: February 23, 2015, 08:59:28 AM »
In the local birding community there is a big controversy going on about baiting owls. People will pay a lot to get Snowy Owl pictures, so "photography guides" take them to an area where the local birds have gotten used to handouts from the humans. They wait until the owl notices them, then release a live mouse for the owl to swoop down, capture, and eat.... all within a few feet of the photographers.... and of course, these pictures are passed off as snowy owls in the wild....


8
Photography Technique / Re: What is your keeper rate?
« on: February 22, 2015, 04:04:51 PM »
100%.

All saved on disk.... even the ones with the lens cap on :)

9
Lenses / Re: understanding "fastness"
« on: February 22, 2015, 04:01:57 PM »
The is the primes VS zooms thing....

A prime is a much simpler design with fewer elements. Less elements means more light. You loose a bit of light going through each element and a tiny bit reflects off of each surface. It all adds up, and in the end a F2.8 prime passes more light through it than a F2.8 zoom.

10
Lenses / Re: APS-C 60mm or 100mm macro lens?
« on: February 22, 2015, 03:55:44 PM »
Definitely the 100. Gives you more working distance. Working distance can only be trumped by - more working distance.
+1

The longer working distance is fantastic for dealing with insects.... and the 100L is one of those rare lenses that seems to have gotten everything right and in balance.....

11
EOS Bodies / Re: Possible Canon EOS 5D Mark IV Spec Talk [CR2]
« on: February 22, 2015, 03:43:42 PM »
Having higher pixel densities just reduces ISO performance.

No it doesn't.

Yes it does.

Someday someone needs to explain to me why this myth persists after a decade of things going the other way despite similar basic sensor performance (QE).
Many things affect high ISO performance.... we can not fixate on just one yet many of us do.

Ultimately, it comes down to light...

A higher quantum efficiency of the sensor will lead to more light being converted into electrons, and will give you increased high ISO performance.

Lower read noise/higher SNR will give you a cleaner signal and will result in improved high ISO performance.

BSI sensors have less circuitry blocking the incoming light, which gives you more usable light, and results in increased high ISO performance.

Finer lithography blocks less light, and like above, gives better high ISO performance.

A cooler sensor (temperature cooler, not trendy cooler :) ) has less thermal noise and gives better high ISO performance.

And yes, pixel size does matter (sort of).... a smaller pixel will collect less light than a larger pixel and that pixel will have lower high ISO performance than a larger pixel.... but you have to remember that a picture is not made up out of one pixel.... it is the results of ALL the pixels that give you the picture. For example, think of two sensors built with the exact same technology and of the exact same size. One is a 10Mpixel sensor and the other is a 40Mpixel sensor. The pixels on the 10Mpixel sensor, being four times larger, will collect 4 times the light as the pixels from the 40Mpixel sensor and the ISO performance will be 2 stops better. However, we can not forget that the 40Mpixel sensor has 4 pixels covering the same area as each of the 10Mpixel pixels and that if you bin those 4 pixels together in post production you end up with very similar performance to the 10Mpixel sensor. Yes, you will loose a slightly greater amount of area to lithography, but you gain a bit from increased sampling density. Practically, the end result will be the same.....  So in the end, larger pixels give you better PER PIXEL ISO performance but with normalizing the resulting images, very little difference in PER PICTURE ISO performance.

And yes, size matters. A FF sensor will capture more light than a crop sensor and for the reasons above, better ISO performance.

12
Canon General / Re: Lost half of my Canon DSLR
« on: February 18, 2015, 09:50:15 AM »
 :'(

13
Its interesting to see which brands of cameras and lenses were used.  Although Most were Canon as I would expect, 1 Iphone was in there.

sometimes it's being in the right place at the right time.....

14
Lenses / Re: Lens Choice for India Tiger Safari
« on: February 17, 2015, 08:52:28 AM »
I'll be heading off to India next month, visiting a number of their National Parks, principally for Tigers, but also birds and anything else of interest.

I was going to take:

- 70 to 200 2.8 ISII
- 400 5.6

and was also thinking of loaning a 500 4 ISII

all on a couple of crop bodies.

However, checking out some threads and other information, I am minded not to take the 500, but instead rent a 100 to 400 ISII (which I can get for a reasonable price on rental), the reason being, that although the 500 would be fantastic, I wonder if it'll be just too much and the combined mass and fixed focal length would be a downside vs the slight compromise in image quality vs the 100 - 400 (but flexibility in range)

I also have MkIII teles I can take.

In a previous post prior to the 100-400 ISII coming out the view seemed split on such a strategy
You really don't gain much with a 500 over a 400mm lens.... If I were renting one just for the trip, I'd probably go straight for the 600F4 and make sure that I had good insurance on it..

I have a Tamron 150-600 and love it. It is a great and a versatile lens, but if I were shopping today I would probably be looking at the new 100-400 and a 1.4X teleconverter. I find that I really do need 600mm (or longer) lenses to get decent wildlife shots as you can't always get close, and sometimes you don't want to.

Have fun on the trip and don't forget to post some of your images when you get back.

15
Landscape / Re: Please share your snow/ Ice Photos with us in CR.
« on: February 14, 2015, 08:54:14 AM »
pdirestajr, I liked your New Kid. Wrong cammo for the season though ;)

This is from my cabin. There is nothing in this world that eases a mind more, than to come up here after a stressful week, put on skis and wander into this peaceful environment.

5DIII, 24-70 f2.8L II
1/100s, f/14, ISO100
Beautiful spot. Beautiful photo.

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