PatMann

PatMann

Lives in United States Northern, VA, United States
Joined on Oct 11, 2009

Comments

Total: 133, showing: 21 – 40
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It would be great if Nikon would work with Fujifilm and Zeiss to design and build some fast wide primes for Nikon DX cameras. I'd love to have a lens like this, or the 14, or the 12 Zeiss, for my D400. Or the 24. This is a company that understands what lenses you need to make an APS-C camera system a complete solution.

Link | Posted on May 19, 2015 at 21:36 UTC as 13th comment | 4 replies
On article Sources of noise part two: Electronic Noise (237 comments in total)
In reply to:

mga010: We are not talking about astronomical photography where single photons are counted. I have my doubts that even the darkest areas in everyday images produce a measurable variance in the photon count on sensor elements. Is there any convincing proof for that?

We are counting actual photons, one by one, and the receptor sites in current camera sensors count most visual-light photons that hit them. Most sensors miss a substantial percentage overall because of the physical structure of the array, the RGB filters and the microlenses that direct light to the receptors.

The quantum efficiency of actual camera sensors is discussed extensively at sensorgen.info and Clarkvision.com.

You can test the variance in your own photos using Excel to look at TIFF files converted to CSV using a freeware TIFF to CSV converter. If you take a fairly uniform dark area that clips shadows, you can find pixels with low pixel counts and calculate the variance in dimly illuminated areas using Excel's statistical functions to satisfy your doubts. You can also calculate the variance of an unexposed frame with whatever exposure you like by making an exposure with the finder and the lens blocked.

Link | Posted on May 19, 2015 at 11:42 UTC
On article Nikon 1 J5 offers 20.8MP BSI sensor and revamped look (152 comments in total)
In reply to:

LiSkynden: I may be stupid but why does the lens have to be that big even thoguh only a small amount of it is showing? This was already in the previous model, but i dont get it.
Looks kind of weird and stupid to have that big "lens" but the actual lens seems to be really small, ... why is this?

AF and VR motors are in there.

Link | Posted on Apr 5, 2015 at 21:55 UTC
On article Nikon 1 J5 offers 20.8MP BSI sensor and revamped look (152 comments in total)
In reply to:

Daniel Bliss: Will they enable off-center focusing with the FT-1 adapter? Will the improved high ISO performance translate into more dynamic range? Will Nikon resist inflicting the next generation V-body with yet another new battery? Might they even go back to the EN-EL15 for a V-body? Will the tiny proportions and jewelry-like manufacturing of the J5 hold up in use?

This is an intriguing camera. Let's hope they are getting it and the rest of Nikon 1 right, despite the stupidity with the battery.

I certainly hope they put the big battery back in the V4. All-day battery is a must, although I'd settle for a battery grip for 4 AAs.

Link | Posted on Apr 5, 2015 at 21:39 UTC
On article Nikon 1 J5 offers 20.8MP BSI sensor and revamped look (152 comments in total)
In reply to:

GodSpeaks: Hey Nikon.... No EVF, NO SALE. Got it yet?

If the sensor proves worthy, there should be a V4 in our future with an EVF. It will be a while before there's a high quality EVF in an entry-level interchangeable-lens camera of this caliber with kit zoom lens at this price point.

Link | Posted on Apr 5, 2015 at 21:34 UTC
On article Nikon 1 J5 offers 20.8MP BSI sensor and revamped look (152 comments in total)
In reply to:

Cameron R Hood: The camera looks great; the lens is extremely ugly and doesn't match the retro design one little bit.

Agreed on the ugly zoom, but their little primes, on the other hand, look absolutely right in place on the panda version.

Link | Posted on Apr 5, 2015 at 21:32 UTC
On photo IMG_0302_bew3_sm in geerie's photo gallery (1 comment in total)

Really enjoyed going through your entire gallery (sparked by the drop collision inside a bubble). Thanks for sharing.

Link | Posted on Apr 5, 2015 at 21:24 UTC as 1st comment
In reply to:

Ying Chyi Gooi: "The XF 16-55mm F2.8 R LM WR is a solid lens, and relatively compact for a 24-83mm (equivalent) F2.8 optic at its wide angle position."

24-83mm (equivalent) should have an equivalent aperture of F4.2 (1.5x crop factor).
F-number will be readjusted when there is a conversion of focal length equivalents, so don't expect it to behave like a F2.8 on a full frame. Instead, it will look like a 24-83mm F4.2 on a full frame.

I'm sure you like your full frame system and your f/1.4 primes and 200mm f/2. I'm quite grateful to have exposure and angle of view equivalence to a very useful 24-70 f/2.8 in my APS-C system, and get really bored having this line of posts cluttering up the APS-C and MFT and 1-inch sensor threads, thank you very much.

Link | Posted on Mar 13, 2015 at 12:03 UTC
In reply to:

bmwzimmer: It's massive!! Defeats the whole purpose of going mirrorless. I don't have an XT-1 but do admire it. However, I'd stick to a set of small fast primes than go for this monster

This is very similar in size to the 17-55mm f/2.8 Nikkor for APS-C and uses the same 77mm filter size, though it is a bit lighter. I like primes as well, but a fast midrange zoom is a great lens for events and photojournalism, and can get you the shot you wouldn't have time to switch lenses for. The overall system with camera body is more compact than Nikon's APS-C since the flange distance is shorter by quite a bit. This lens is a tad wider, and quite a bit less expensive than the Nikkor. Looks like a great offering and definitely brings the X system up a notch.

Link | Posted on Mar 13, 2015 at 10:49 UTC
In reply to:

PatMann: Best of luck to Fujifilm on addressing these issues. The lens lineup is stellar - no other APS-C system comes close. But AF and resolution do need to be addressed. If Nikon produces a pro APS-C camera to replace the D300s, they need to bring lenses with it to sell it. If they do, I will probably stay with Nikon. If not, Fujifilm is the first place I will look for my future primary camera system. I can't afford the $ or the overall system weight and bulk to go whole-hog full-frame.

Fujifilm (with Zeiss) has a well-balanced range of focal lengths and apertures that make up a complete system, and in particular pick up some key requirements such as an 18-equivalent wide, a 24 or 28 equivalent, a 35-equivalent f/1.4. The Pentax range has a hodge-podge of full-frame leftovers and a lot of duplication in their APSC wides. I don't find it a very attractive mix for my needs.

Link | Posted on Mar 8, 2015 at 01:00 UTC
In reply to:

DotCom Editor: Looks interesting. Too bad it's not Arca-Swiss compatible.

Of course it's compatible. You just buy a Manfrotto plate and screw an Arca QR to it. I guess that's what they expect most of us to do.

Link | Posted on Mar 5, 2015 at 16:37 UTC
In reply to:

justinwonnacott: Wrong attachment system ... no sale.

@RedFox88 - So I'm supposed to put a Manfrotto QR plate on the bottom of my L-bracket that already fits the Arca QR on my ball head? I don't think so. What if I want to use the side? There's no threaded hole there for another Manfrotto plate.

Link | Posted on Mar 5, 2015 at 16:32 UTC

Best of luck to Fujifilm on addressing these issues. The lens lineup is stellar - no other APS-C system comes close. But AF and resolution do need to be addressed. If Nikon produces a pro APS-C camera to replace the D300s, they need to bring lenses with it to sell it. If they do, I will probably stay with Nikon. If not, Fujifilm is the first place I will look for my future primary camera system. I can't afford the $ or the overall system weight and bulk to go whole-hog full-frame.

Link | Posted on Feb 28, 2015 at 12:44 UTC as 78th comment | 7 replies

De gustibus non disputandum est.

Link | Posted on Dec 12, 2014 at 12:45 UTC as 106th comment | 1 reply
On article Opinion: Bring on the 70-200mm equivalents (347 comments in total)
In reply to:

wolfloid: This whole article is based on a very basic misunderstanding. The lenses are the 'equivalents of 70-200 f4 lenses. NOT f2.8 lenses. Depth of field on APS-C at f2.8 is 'equivalent to f4 on full frame. Any light gathering advantage of f2.8 on APS-C is mitigated by the larger sensor of FF, which, if the sensors are of the same quality, will have half the noise of APS-C.

So, the Canon 70-200IS f4 is actually the lens to compare these new lenses with, and that, of couse, is smaller and lighter.

This article understands my needs perfectly. The f/4 lens isn't equivalent to me because I can't shoot it at f/2.8. Most of the time either my APS-C or 24 x 36 camera will provide perfectly acceptable noise and dynamic range results to me on a modern 24 mp sensor. What's relevant to me in these conditions is what aperture and shutter speed produce acceptable motion blur of an action subject. It's rare that I'm trying to achieve a depth of field effect that's significantly different with a change of one stop. In my world, therefore, it would be very useful to me to have a smaller, lighter, more compact 50-135 f/2.8 zoom for my APS-C camera, a range I find much more useful than 70-200 on APS-C for event and street shooting, to go with my 17-55. I vote for a fully capable, lighter and more compact system. I've given up on Nikon providing one and hope that we see more of these efforts from others.

Link | Posted on Sep 21, 2014 at 01:56 UTC
On article Opinion: Bring on the 70-200mm equivalents (347 comments in total)
In reply to:

macky patalinghug: of apsc's, Canon had a very light very sharp very affordable offering: the ef-s 55-250 IS.

Not a fast lens in the same class being discussed here.

Link | Posted on Sep 21, 2014 at 01:09 UTC
In reply to:

Daniel Lauring: I hate having to wait till the end of 2015 for the 140-400mm. I could use this lens today. Until it is released I have to fall back on my m43 with 100-300 OIS Panasonic lens.

I hope Fuji concentrated on getting this lens the sharpest at 400mm. We've already got decent lenses out to 230mm.

I agree. Too many tele zooms are designed without attention to the long end, like my 70-300 Nikkor. It's stellar at 200, but then starts to fade away . . . If this lens proves wothy at 400, and the other promised lenses are as good as those out now, that makes the system complete as far as I'm concerned. Kudos to Fujifilm for knowing what makes sense in a full range of lenses for APS-C sensors.

Link | Posted on Sep 19, 2014 at 10:42 UTC
On article Ricoh surfs into action camera market with WG-M1 (108 comments in total)

This has to be the cutest camera ever made.

Link | Posted on Sep 14, 2014 at 17:36 UTC as 6th comment
On article Fast and full-frame: Nikon announces 24MP Nikon D750 (406 comments in total)

So there is still a hole to be filled for a rugged 24mp high-speed FX body without penny-pinching on things like eyepiece shutter and threaded eyepiece, lack of dedicated AF-On. As a 610 with really good AF and fold-out screen, fine, but how about something to get excited about - another camera of the year.

Link | Posted on Sep 14, 2014 at 16:54 UTC as 9th comment
On article Fast and full-frame: Nikon announces 24MP Nikon D750 (406 comments in total)
In reply to:

rollemr: It's nice that this camera has the fastest Nikon FX frame rate but what is the reported buffer capacity?

Slower than D3, D3s, D4, D4s, D700 with grip.

Link | Posted on Sep 14, 2014 at 16:39 UTC
Total: 133, showing: 21 – 40
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