August 03, 2015, 02:42:59 AM

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Animal Kingdom / Re: Hummingbird in infrared
« Last post by kirispupis on August 02, 2015, 10:39:45 PM »
Thank you for the comments. Here is another one from the same series. The processing is slightly different.

IMG_0031-Edit.jpg by Joseph Calev, on Flickr
Animal Kingdom / Re: Hummingbird in infrared
« Last post by kirispupis on August 02, 2015, 10:38:33 PM »
The last time I tried colour IR was back in the film days. I like the image, for technical reasons, plus, its different ;)

I am curious about the IR setup. My interest at the moment is trying to study skin diseases on animals. The other week, I had an idea about using IR to help determine if a certain condition of the skin appears, without handling the animal. But, I wasn't entirely sure how to setup the IR rig. This certainly looks like an idea to try :)

If you are looking to photograph skin conditions, then you should look into UV instead of IR. Eventually I want to also do UV photography, but it is a bit trickier. With IR I converted a camera to 590nm, then many different filters exist for other wavelengths. I've seen filters up to 95mm, though I only need 82mm.

For UV you can convert a camera, but if you need a specific spectrum then you need a filter - but those filters are much smaller than my lenses. The biggest is about 52mm. Therefore for UV I'll probably convert a much smaller camera.
Canon General / Re: Canon Profits Drop 16% in Second Quarter
« Last post by unfocused on August 02, 2015, 10:28:17 PM »
Ultimately, when today's generation of users who have grown up with smartphones and other devices that have EVFs become the majority of camera buyers, then the optical viewfinder and the mirror may indeed disappear.  But my question to you is - why do want that to happen now when so many folks prefer the optical viewfinder?

1. While I do not really "like" any large corporation, I have no "hatred" against Canon. I'm just watching their stills imaging product strategy strictly from a customer's perspective and taking some educated guesses where that might lead them.

2. I don't want to see those mirrorslappers disappear overnight. They will disappear soon enough, but its going to take some time. Everybody can buy and use whatever type of camera they want. But it needs to be avaliable for purchase! All I want from Canon is a kick-ass FF mirrorless system. If they would also continue to churn out minor iterations of their old mirrorslappers again and again, no problem with me. All I want is the choice - mechanical mirror slapping in the lightpath ... or rather not.

3. I would like to BUY a Canon mirrorless FF camera that is fully competitive with or bests either the Sony A7 II or the A7R II. I would also like to BUY a few new native Canon lenses along with it - nicely balancing size/weight, performance and price.

4. I do dislike Sony as a company [way more than Canon] and more importantly, I really prefer the Canon user interface. Also, I don't like the idea of a reverse-engineered third party lens adapter to use my existing EF glass on a Sony body. Just as on my EOS M, I would like to buy prefer a reasonably priced, native Canon adapter to mount existing EF glass on a not-yet existing Canon FF mirrorless camera.

Those "wants" seem reasonable, but when they become the topic of repeated posts on multiple threads, it begins to look a lot like obsession. Especially, when there seems to be an undertone that Canon is somehow deliberately denying you the camera you want.

Let's face it. When, and if, it makes economic sense for Canon (or Nikon) to produce a full-frame mirrorless camera they will do so. Companies are in the business of making money and that means they are interested in making products that their research shows will sell in sufficient quantities to offset development costs and make a profit.

For a different take on the mirrorless debate, I'd suggest reading the interview with a Fuji executive that was referenced in a recent Photo Rumors post. The shortened version is that Fuji looked at both APS-C and Full Frame and concluded that APS-C was the best format for mirrorless.  I'm not saying they are right and Sony is wrong, but their reasoning seems sound to me – the size advantages of mirrorless essentially disappear once you start developing full frame bodies and lenses and the difference in quality between APS-C and Full Frame is not that great.

Frankly, as companies go, I have a great deal of admiration for Fuji, since they were able to reinvent themselves when their core business (film) disappeared, while Kodak allowed itself to go extinct.

There is nothing wrong with wanting "a kick-ass FF mirrorless system" from Canon, but it is wrong to: a) assume that you know their business better then they do and we can somehow be certain that such a camera would be profitable and b) that there is some hidden agenda that keeps them from offering you the camera you specifically want.

Finally there is this: constantly posting the same complaint on a camera forum is not going to make your wishes come true, but it does make you appear obsessive and makes it all that much easier for people to dismiss your point of view.
Software & Accessories / Re: Manfrotto Digital Director
« Last post by jthomson on August 02, 2015, 10:24:12 PM »
I use DSLR Controller with my 5d3 and Samsung Tab S.
I had to buy a proper cable from to connect the camera and tablet, which was a very expensive $8.00.

I also bought a RAM mount which clips on to my tripod to hold the tablet, and it all works really well.

When I do real estate work, or restaurant food photos, the clients are very impressed with the set-up and love the fact they can see the angles and layouts etc before I take the shots.

I find that as long as the camera battery is well charged (more than half charged) that it all works really well and for a very reasonable price.
I too use DSLR controller with a 5D3 wired to a Samsung  tabpro.  I also got the wireless router that allows you to work wirelessly but find the time to download from the camera to the tablet to be too long especially when shooting raw files. It works, but it is slow.  The wired set up isn' t really fast as it runs on usb 2, but it isn't as slow as the wireless.

As for not having an android version, that isn't so unusual.  The android system is open and that can lead to compatibility issues that don't exist in Apple. Dslr controller has several android devices that it doesn't work on.  Trigger Traps dongle has way more functionality on Apple than on Android,

I bought two of the custom ones today. The EC-A and the S Type.
Looking forward to getting using them both! Thanks for the recommendations and the helpful hints about JIS vs Philips head, will be using JIS to put these in.

A strange coincidence, I had bought a new leather belt that was supposedly reversible, and when I went to reverse it Friday, I could not take the tiny screws out with my high quality Phillips screwdrivers.\

Then, a light bulb went on - JIS I took the belt out to my studio and workshop, pulled out my JIS screwdrivers, and it worked easily.  The heads were so small, and my vision so poor that I did not see the lack of a radius in the cross.
Lenses / Re: Canon glass vs ______ glass
« Last post by Mt Spokane Photography on August 02, 2015, 10:18:45 PM »

Very definitely agree about testing independent of camera bodies.  Look at the DxO mark scores for the Nikon and Canon 500mm f4 lenses.  Which lens would you rather have, knowing that sensors keep improving?

Test values can only be compared against the same body.   Unless you use a optical bench.  This is the second optical bench for lens rentals, their earlier one may still be in use.

I had a optical bench in my lab where I worked.  We used it to test fiber  optic components from various sources and worked with them to improve the connection methods.  The telecom industries used single mode fiber and fused the joints, but for our industry, we were using short runs of multimode and used various types of connectors.  Those connectors sometimes had lenses in them.

At the time, use of fiberoptics in our industry was in a development phase, data speeds have leapfrogged since then.  We were the first to use a production fiberoptic lan in our product back in the mid 1990's.
Lenses / Re: Dust inside Canon 100-400mm f4.5-5.6 L II (?)
« Last post by JPAZ on August 02, 2015, 10:15:11 PM »
I recently upgraded (?) the 100-400 from a mk i to a mk ii.  It was not because of the dust issue.  It was because the mk I was not as sharp as I'd like and a filter seemed to make it a little worse.  Right now, I don't have a filter on the mkii but will put one on it soon.  It is too new and I am still trying it out.

And actually, I've taken some mighty fine photos with the old 'push-pull' but some (especially wildlife) were a bit disappointing.
Canon EF Zoom Lenses / Re: Canon EF 16-35mm f/4L IS USM
« Last post by Click on August 02, 2015, 10:14:49 PM »
Cool shot. Well done, Pookie.
Canon EF Zoom Lenses / Re: Canon EF 16-35mm f/4L IS USM
« Last post by Pookie on August 02, 2015, 10:11:15 PM »
I'm the site photographer for this kite festival. This is inside a 30 meter Mantis Shrimp kite at the 30th Annual Berkeley Kite Festival... 2015

5D3 + 16-35 f/4L IS USM

Animal Kingdom / Re: Hummingbird in infrared
« Last post by JPAZ on August 02, 2015, 10:06:16 PM »
Nice shot, kirispupis .  I am very impressed with your focusing skills, as well.  To me, IR is a bit like B&W.  It is different than how our eyes see the world around us.  I've seen some IR images I really like and some no so much. 
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