November 29, 2015, 02:34:28 PM

Recent Posts

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Normally, I would not post photos of people with recognizable faces in this country, but in this situation, the organizer of the race had included in the signup process for the participants a "Model Release" form.
Also, the race was broadcasted on TV and on the internet.
So, here goes ...
Also, I was tempting to experiment with a longer shutter speed to show movement in the photos.  Somewhat successful, but required a bit of sharpening at post.  In retrospect, I should have used Tv, instead of Av.  Oh, a learning experience.
Lenses / Re: Is this fungus?
« Last post by sulla on Today at 12:02:21 PM »
I once had a lens looking something like this. Turned out to be on the front surface and closer inspection (loupe) identified it as corrosion, as furthermore it couldn't be cleaned. The coatings were destroyed, must have been by water, no salt water, however. Now, I was quite lucky because it was not on the front element of the lens, but only on the protective filter.

So to answer your question: if it is on the front side, it could also be corrosion. If it is inside, I would assume it to be fungus indeed.
EOS Bodies / Re: Canon EOS 5D Mark IV Talk [CR2]
« Last post by pedro on Today at 11:59:36 AM »
I estimate that I've shot about 12 minutes of video on my 5D3, and I bought it right at release paying $3499.

Of the 12 minutes, all of it were accidental video because accidentally the toggle switch went left to the video option while I was unaware. To me, having video is not jut neutral -- it is a negative because of things like this wasting battery, wondering why the still camera function is behaving in a weird manner, etc.  That would be just multiplied by also having a 4K option.

I would have paid $3599 for a 5D3 version that had no option for video.

same here, although I had less then two minutes on my 5D3 who got stolen in an assault this covered it completely. ;-) good one!
Lenses / Re: Lenses that you want Canon to release next
« Last post by mb66energy on Today at 11:57:17 AM »
EF 40-200 4.0 L IS USM    (replacement for my 70-200 4.0 L USM)
EF 50 1.4 IS USM with compact outline and 1:3 close focus capability    (with good IQ from f/4.0 on for close distances)
Both lenses with brilliant contrast and flare resistance.

With my 100mm Macro and a 16-35 it would make a great 2-Body-2-Lens-Combo ... depending on the needs.
Lenses / Re: Chances of a Canon 200-600?
« Last post by sulla on Today at 11:57:11 AM »
Wasn't there a rumour a while ago about an affordable supertelephoto lens? According to Canon "supertelephoto" starts at 500.
Now that Nikon can do a really very affordable zoom to 500mm, Canon sure could keep pace. I'm also sure they are hurt a lot by Tamron and the two Sigma's 600 zooms.
Canon is sure not to release a lens with an aperture smaller than 5.6, so I believe they won't release a direct competitor to Tamron and Sigma, for a 200-600 5.6 lens would be outright more expensive than those 3 lenses. But a Canon competitor to the Nikon offering should be possibe. However, if Nikon's lens was a surprise to Canon, development of a Canon 500 zoom should take a loooooong while.

Let's look at the fixed lenses instead: The 600 f/4L is around USD 11000, so a 600 5.6L could be around USD 5000 at the same build and IQ. But, you know, build and IQ don't need to match the 600 f/4L - and probably should not do it, as this could hurt f/4L sales too much - and a 600 5.6 non-L could be made for probably much less than USD 5000, about half of this would bring it into the affordable range for many. Yes, this lens would include a huge 110mm front element, but probably it could be manufactured from simpler, thus cheaper glass and shape. Wouldn't be L any more, but could bring price down a good deal. Special glass for the smaller rear-elements could correct for the cheaper front element then.

In all, I believe there is a chance for an affordable Canon super-telephoto 600 lens or 500 zoom.
But not a 600 zoom, no.
Lenses / Re: Canon's new Blue Goo
« Last post by on Today at 11:53:44 AM »
I ask out of a few different elements of curiosity. One element interesting me is where this fits in relative to lens research. There has been patented research on fluid optics, allowing for lens shape to be controlled and dynamically. This isn't that, but I was curious to see if this was indeed a fluid element within a group, which it could be - despite the raw material being shown as a powder. I think Roger Cicala referred to the phase of the material being unknown in his initial blog post, and my brain keyed off of that.

The implications for a small element - fluid or otherwise - that eliminates color aberrations is that lenses can be made both better and SMALLER. Lots of elements go into correcting this stuff. When you see the new great lenses we've had coming out between Canon, Tamron, Sigma and Zeiss, the sizes and weights have been increasing at a rapid clip.

Whether this is a technology that is generally applicable is the biggest question I have in my mind. And how that is applied will have implications on the need for many design compromises that have been generally accepted to date. When lens designers needn't worry about the different spectra of light hitting different places, I'd imagine there are lots of other issues that they can be freed to focus on. Interestingly, the new Canon 35 II didn't really show any weight savings versus its competition.

I have the idea that knowing more about the Blue Goo would allow me to get excited about what those other improvements will be over time.

EOS Bodies - For Stills / Re: Black bar on photo?
« Last post by neuroanatomist on Today at 11:35:40 AM »
If your max sync speed is 1/200 then try 1/125, 2/3's stop slower, and I am sure it will never happen, at 1/160, 1/3 stop slower, it might happen occasionally but nowhere near as often.

He was 1/3-stop below his 1D X's max sync of 1/250 s.
Portrait / Re: Post your best portraits(street, studio, candid etc...).
« Last post by Click on Today at 11:35:17 AM »
My wife and our Boxer

Nice picture, John. Welcome to cr.
EOS Bodies / Re: 7D MkII Grip - genuine vs aftermarket
« Last post by clarksbrother on Today at 11:25:12 AM »
The third party grips will work, but they are definitely of lower quality.

My recommendation, search eBay for Canon Gray market import. Same quality but almost as cheap as the third party.
Deals on Gear / Re: Black Friday: DSLR Bundle Deals at Adorama
« Last post by old-pr-pix on Today at 11:22:57 AM »
Rebate form expired yesterday - 11/28/2015?
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