Posts

Chaitanya · Jul 19, 2018

24Mp Aps-C sensor
28mm(35mm equi.) F2.8 lens
https://m.dpreview.com/news/2300775454/fujifilm-xf10-is-a-small-wide-angle-aps-c-compact

3kramd5 · Jul 18, 2018

Orangutan said:
3kramd5 said:

Orangutan said:

Keith_Reeder said:

Orangutan said:

That's not my experience: according to DxO, my 70D has 11.6EV of DR, yet I frequently encounter problems in landscape where important highlights are blown out, and important shadows clipped in the same image.

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And which Raw converter were you using?

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Usually Lightroom, but sometimes DPP. Not much difference between them. I'm not sure that matters, though: the histogram tells me I'm at least 3-5 stops from full coverage of the scene DR. (I sometimes block a highlight area of the scene to see where it spikes on the histogram, then watch the spike move as I change exposure)

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You mean in-camera, yes? If so, it is JPEG-based, and not representative of the full capability.

Click to expand...

Correct, but not as relevant as it might appear, for two reasons: (1) even though it's JPEG based, the JPEG histogram is (from my experience and what I've read on the web) about 1 stop different from the RAW histogram; i.e., if the JPEG is clipped by about 1 stop, I can probably recover it in post, and I take this into account in my exposure settings. (2) I've also bracketed and examined RAW histograms after the fact. In deep forest, when exposing for the shadows, I'd need to take a second frame 3-5 stops darker to keep the back-lit leaves (or splashing water) from being blown-out in the RAW files. Of course, this depends on the angle of the sun (time of year/day) and other factors, but I've tried it several times with fairly consistent results. YMMV.

I will also say, that I have yet to get the full DR of a male wood duck in full light: I have several wood duck photos that are clipped at both ends of the histogram.

Sure. The histogram is a functionally useful tool, I’m just suggesting it can’t be used to quantify the dynamic range capability of a camera (even if it were RAW it couldn’t). It’s clear now that’s not what you were saying.

Mt Spokane Photography · Jul 18, 2018

Antono Refa said:
Mt Spokane Photography said:

For panoramic images, the critical point is the nodal focus point in the lens, the focal plane is not involved.

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Can the nodal focus point in the lens be found with no reference to the focal plane? If so, how?

No, it varies for every type of lens design, for a simple design, it is where the aperture is, but that is seldom the case.
You can find it experimentally, its seldom if ever marked on a lens, it moves on zooms.
https://www.panoramic-photo-guide.com/finding-the-nodal-point.html

gcrimmins · Jul 17, 2018

marcel said:
I have the EF 50-200 f/3.5-4.5L from 1987 the 4x zoom and the size/weight are perfect, I do not understand why they have not done something similar anymore.

That would also be a good fit on an APS-C body, as opposed to a 70-200 which doesn't go quite wide enough on one.

pwp · Jul 17, 2018

kat.hayes said:
Do you think 10lbs will be enough to put on the light stand to make sure the stand with iPad doesnt get tipped over? OR should I consider 15lbs?

You're going to have to figure that one out for yourself. It depends on what conditions you're exposing it to. If you're outdoors on uneven ground with high, gusty wind and lots of 5 year olds with their dogs, it's going to be a different risk level to working in the studio with an assistant photographing a toaster. Trust and apply your common sense and knowingness.

-pw

AlanF · Jul 17, 2018

It's 24cm long, the same as the 400mm DO II. It's going to £4,500-5000 based on the estimates. Interesting to read the comments about the Nikkor 200-500mm - either there is a lot of copy variation or variation in competence.

fullstop · Jul 17, 2018

https://www.dpreview.com/news/0388810394/gitzo-teams-up-with-sony-to-launch-tripod-and-l-bracket-designed-for-series-cameras

Right in the middle of Really Right territory. Especially on price. ;D

The Gitzo Traveler α costs $999.99, while the Gitzo L-Bracket α will set you back $199.99.

Steve Dmark2 · Jul 17, 2018

Because many hit on canon because of "lack" of improvements, I recommend to watch dustins review where he mentiones a few interessting points.

xps · Jul 17, 2018

Talys said:
TWI by Dustin Abbott said:

Talys said:

Thanks for another great review.

I've only used this camera in the store, but what I noticed right away was the EVF. It's such a step down from the A9/A7R3, that I don't think I would choose this model, between it and the "R". Then again, I'll freely admit that the VF is a critical part of my decision making, and, along with AF speed, remains one of the key reasons I haven't been convinced to switch to mirrorless.

Click to expand...

AF performance is, in my opinion, no longer a reason to not go mirrorless. I got better tracking results with the a73 than I have with any DSLR.

Click to expand...

So, first of all, most of the time that I need fast autofocus is birding, and that's the lens through which I'm making these comments (sorry, pun intended )

There's autofocus tracking, and autofocus speed, which aren't the same thing, though. I agree that the tracking capability is great, but you have to get autofocus in the first place.

I haven't tried an A73, but I did have an A9 for a couple of days (and an A7R3 for over a month). Using the 100-400 GMaster, the speed to go from near to infinity is horrible. If you defocus, then try to focus on a hovering hummingbird, for example, you'll never catch it in the second or two that you have. Now, if you throw on a 1.4x extender -- which his the only solution to go higher than 400mm -- the autofocus speed is just dismal.

Take a 1DXII, throw on a 100-400LII and a 1.4x extender (which, in my opinion, when using extenders, is the best AF speed camera currently on the market), and the autofocus speed just blows it away. Throw on the Sigma 150-600 (which will require an MC-11 adapter on the Sony), again, a huge difference.

I actually had the 100-400 GM + 1.4x extender beside a Nikon D850 with the 200-500 at the same time while at a birding spot. The performance difference was just night and day -- it's hard to overstate. The AF speed at 400 and 400+extender on full frame is pretty important, IMO, and it's still not there, yet, in my opinion. There is the additional problem of the VF being blacked out while you raise it to you, making pointing the camera at as small subject quickly at telephoto lengths sometimes challenging (by the time you see anything and the AF starts to engage, the subject has moved). As a result, you need to start at a lower focal length, track it, and then crank the zoom -- which is rather noobish and misses some great shots

The problem with autofocus tracking with birding is that it's almost useless. You want the bird to fill up as much of the frame as possible, for reproduction clarity. But then, most birds are moving so fast that the tracking has no chance, and anyways, you only have it for a brief time.

Thanks for your opinion. The A7III is an very good body, indeed.
For birding (used with 600 II, (w/Wo 1.4x III extender) & Metabones V Adapter) my combo is not the best to use. Also on my 400 DO II. On the 100-400 II ist works satisfying, but really not as good as I wanted.
Af "pumping" to get sharp, and the loose of the AF-sharpness, when there are even just small bird movements did not satisfy me. In shots and in video. Also, changing settings takes some time on the A7III...

Compared, the 5D IV is much better working on genuine Canon lenses.
On the other hand, using the A7III on the Sony 70-200 2.8 GM (rented from my Grandgrandson) AF performance of the A7III is incredibly fast and relyable on fast passing birds.

So, I hope there will be a chance for AF improvemts on Canon MLS bodies, as you can see on the A7III, when using it on genuine Sony lenses (maybe not on the 100-400, but on the 70-200 definitively).

But I will keep it, as the MLS system works super on my DP slider for timelapse. And I´ll have to work hard to get just 10% of the experience like Mr. Heck frome timestormfilms has.

Aussie shooter · Jul 17, 2018

Just for clarification. I was using a 7d2 and the longest exposure was about 40 mins at Iso 400 with a couple of shorter ones as well. And yes. The noise was pretty horrendous as you would expect on a crop sensor camera like that. It certainly is not what I would call a dedicated astro rig. Sounds like sensor damage won't be an issue though so thanks for the help. The noise I will just have to live with.

3kramd5 · Jul 16, 2018

Markus D said:
He/She also has a wedding ring on left hand - no pink tape on that so not going incognito.

That was at the same time incredibly confusing and extremely unsettling...

LSeries · Jul 16, 2018

rpt said:
Lovely shot!

I have a question. How the beep did you spot it?

You can spot amazing things just by standing still for a moment

privatebydesign · Jul 16, 2018

Re: Canon's First Full Frame Mirrorless Won't Have the Exact Same Sensors as the EOS 5D Mark IV. [CR

Cthulhu said:
3kramd5 said:

Cthulhu said:

3kramd5 said:

rrcphoto said:

Canon Rumors said:

The 30.4mp sensor (which we haven’t confirmed with certainty) will be “very different than what is found in the EOS 5D Mark IV”.

Click to expand...

this stands to reason. Canon's been happily applying for WAY too many advanced sensor patents to not pull a rabbit out of a hat and skip a few EXMOR generations and catch up quickly.

Click to expand...

Patents don’t necessarily translate into production, but didn’t they already essentially catch up (5D4)?

Click to expand...

No

Click to expand...

Please elaborate.

Click to expand...

In the rare occasion where Canon comes within 1ev of sony, it still has less detail and sharpness.

What a load of garbage.

Arty · Jul 16, 2018

NancyP said:
Arty said "I hardly need another macro lens" - Hey, I resemble than comment! I don't "need" another lens now (though I am eyeing the TS-E 24 v.II .....)

Some people who prefer primes may also like the 70 mm focal length for general work.

That is exactly why I got the lens. Sometimes a 100 mm lens is too long, even on full frame, and a 50 is too short. I think that 50 mm makes for a better general purpose focal length and is great for copy work, but 70 mm has advantages on full frame for some macro uses. The review on Lens Rentals has 70 on the short side, but there are advantages.

MrFotoFool · Jul 16, 2018

I just used the link to pre-order the 70-200 IS iii.

Cryve · Jul 15, 2018

So far almost every sport camera kept the megapixel count to arround 20mp no matter if fullframe or aps-c.

Now with the 7d III slowly apporaching release im wondering what is actually limiting a sportsbody to go to higher megapixel counts.

Previously it was assumed that the megapixel count affects low light performance. The lower the megapixel count, and therefore the bigger the size of the photocytes, the better the iso performance.

Recently i came across some articles that discussed that the megapixel count only really affects the per pixel performance, but the overall iso performance of a picture, scaled to the same size, basicaly stays the same with increasing megapixels.

Thus it seems that the only limiting factor is data thoughput or perhaps sensor read speed?

Does anyone here have insight on this? could we, given current technology, however unlikly, see a 7d iii with 26 or 28 mp and about 12 fps while still providing an improved iso performance?

old-pr-pix · Jul 15, 2018

Interesting shots... doesn't seem to be very energy efficient though. Huge open spaces with little occupancy, need for localized lighting reflectors, acoustics must be interesting. I wonder what it looks like at night? Does anyone work there when it is dark outside?

Jul 15, 2018

Kind of a ramp, the moving staircase with long exposure which leads to the bridge over the Mitelland Channel (longest artificial water route in Germany) to the Wolfsburg Autostadt.

and the topview:

regards
Frank

slclick · Jul 15, 2018

YuengLinger said:
Is this becoming the -Adderall infused OCD post stacking forum?

OR is it still CR?

Tiresome as hell to read grindingly dull pontfication merely for the sake of getting to 10k posts.

Do you get a hat? Or a pennant?

dickgrafixstop · Jul 15, 2018

NEWS FLASH - Fuji will also announce a XT4 and and XT5! Timing is uncertain.

BeenThere · Jul 15, 2018

A week seems like a reasonable loan period but the shipping was expensive. I’m guessing that a lot of the shipping cost was insurance. Still, less than a rental.

privatebydesign · Jul 14, 2018

mikekx102 said:
Is there any chance an EF 14mm F2L could be announced in September?

None.

BillB · Jul 14, 2018

Don Haines said:
What we do know about the mirrorless release is that no matter what the specs are, that according to internet logic, it will be inferior to Sony..... and whatever the mount is, it will be the wrong one.....

And somehow, despite the complainers on this forum, it will sell well and people will take great pictures with it...... just like every single Canon release in the last ten years.....

And because of this camera, people will leave Canon in droves, yet somehow their market share improves....

Does anyone else see the disconnect between the trolls and reality?

Wonder if the Dunning-Kruger effect has anything to do with it. The less you know the more it seems like magic is at work, magic that you can get out of a box.

stevelee · Jul 14, 2018

3kramd5 said:
stevelee said:

All this is very theoretical to me, since I can't think of a reason I might be in the market for a new camera in the next five years or so. The exception would be a successor to my G7X II for travel, maybe even the III next year before a big trip. At present, neither the camera purchase nor the trip is planned, however.

Click to expand...

I have no plans to buy a new camera, but I rarely do and that’s never stopped me

If I hadn't had some more responsibilities and commitments to come along for this summer, even though I hadn't planned a trip, I might be in Norway right now with my G7XII.

I had planned to buy a 16-35mm f/4 in early October for my birthday. A few weeks ago a high school classmate died suddenly and unexpectedly. On the way home from the funeral, I stopped by the Best Buy, and they had the lens in stock. Under the circumstances, I couldn't make waiting until fall to buy the lens make any sense, so I went ahead and bought it.

I certainly do impulse purchases, but I usually have some notion of something I am going to want, and right now nothing in terms of cameras or lenses occurs to me that I want or anticipate wanting.

OK, I did buy my first DSLR, a Rebel, as a complete impulse when I stopped at H. H. Gregg some years ago to look at TVs and washers and dryers. I'm sure I must have had some notion that I'd buy a DSLR some day. It wasn't a very good choice, but it was cheap and came with a couple not-so-great lenses, and it did let me know that I wanted to get a T3i when that came out. That camera served me well for many years.

AlanF · Jul 14, 2018

I would be very surprised if the lens copy variation in a prime of the quality of that of the 400mm DO II would account for the poor performance in the TDP tests - Canon's quality control is generally very good for L lenses and the newer consumer ones. Evidence for sloppy testing comes from the comparison of the 400mm DO II and 100-400mm II both at 560mm on the 7DII https://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=962&Camera=963&Sample=0&FLI=1&API=1&LensComp=972&CameraComp=963&SampleComp=0&FLIComp=5&APIComp=1

Here, the 400mm DO II is much sharper than the 100-400mm II, opposite to that reported by TDP on the 5DSR.

I am surprised by the performance of the Nikkor at 550mm, and we need to see more analyses.

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