PorscheDoc

PorscheDoc

Lives in United States City, United States
Works as a Doctor
Joined on Sep 3, 2010

Comments

Total: 78, showing: 1 – 20
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Thom Hogan has just published his analysis of this rumor (http://www.dslrbodies.com/newsviews/nikon-isnt-being-bought-by.html). Sentaku mixed up Nikon lithography business with its photography business. Its the former that is dragging Nikon down and needs to be jetisoned. Sentaku is just another rumor tabloid/rag that relies small bits of 'facts' to get views (click bait).

Link | Posted on Jun 12, 2017 at 23:13 UTC as 2nd comment

This rumor is total garbage. It appears to be based an unknown japanese blogger with the online name ayaya030915. The translation of the article is completely wrong (see https://nikonrumors.com/2017/06/06/about-that-fuji-helping-nikon-rumor.aspx/ ).

Dpreview should check their facts before reposting fake news.

Link | Posted on Jun 7, 2017 at 01:25 UTC as 13th comment | 6 replies
On article New Sony a9 firmware fixes overheating warning (85 comments in total)

As of 13:20 EDT, the firmware update has been removed from the Sony site.

Link | Posted on Jun 6, 2017 at 17:26 UTC as 18th comment

I will holdout for the Au versions.

Link | Posted on May 31, 2017 at 17:53 UTC as 9th comment
In reply to:

Prairie Pal: Released just to keep Thom Hogan off their backs. ;/
But seriously I think this is a welcomed lens, given the VR.
At Cdn$450 I'm not expecting spectacular IQ, but we may be surprised.
I agree with another comment that it's a great alternative to the Olympus 9-18 in that it may keep the APS-C wide angle kit compact enough for a lot of people to keep their stake in Nikon ground.

Thom is still on their backs: this cheapy appeals to the D3xxx crowd. Where are the pro-level UWA DX lenses?

Link | Posted on May 31, 2017 at 17:32 UTC
On article Looking back: Canon's eye-controlled focus (210 comments in total)

It worked well on my A2E and EOS-3. Use of the latter was limited due to the loud shutter and motor drive noise. With every shot you announce to the world that you just took a picture. It makes the Sony A7R seem quiet in comparison. When I did not need autofocus, I reverted to using my trusty Nikon F3 with microprisim screens (G, H, F).

Link | Posted on May 11, 2017 at 18:33 UTC as 83rd comment
On article Sony a9 Full Review: Mirrorless Redefined (2725 comments in total)

Interesting specs, but how long does it take to clear the buffer. I have heard anywhere from 36 seconds (Tony N.) to 3 minutes.

Link | Posted on May 4, 2017 at 21:43 UTC as 283rd comment | 2 replies
In reply to:

Old Cameras: You can see the moon as well to the left if you look closely.

The moon is the faint dot to the left of earth in this pucture:
https://www.nasa.gov/feature/jpl/nasa-image-shows-earth-between-the-rings-of-saturn

https://photojournal.jpl.nasa.gov/figures/PIA21445_fig1.jpg

Link | Posted on Apr 22, 2017 at 19:56 UTC
On article Zeiss formally announces Batis 135mm F2.8 (182 comments in total)

I am sure that the IQ will be very high, but at $2k for a f/2.8 lens, I will wait to see how it compares to the Sigma 135 f/1.8 Art. I use multiple systems and routinely adapt Canon and Nikon lens to Sony E/FE.

Link | Posted on Apr 5, 2017 at 18:04 UTC as 38th comment | 4 replies
On article Gear of the Year 2016 - Barney's choice: Nikon D500 (217 comments in total)
In reply to:

Mister Joseph: Can the Sigma 18-35/1.8 AF motor keep up with this D500 AF beast?

It cannot keep up even with a static subject except in the center (maybe after calibration). Forget about using any off-center AF points (see response below and links),

Link | Posted on Dec 19, 2016 at 20:40 UTC
On article Gear of the Year 2016 - Barney's choice: Nikon D500 (217 comments in total)
In reply to:

CheddarMonkey: Tempting camera indeed. But what lenses should one get? One could use FF lenses for wildlife, but there don't seem to be great DX lenses for wide/everyday focal lengths (where ff lenses would be at a disadvantage). Anyone else struggling with this?

@paulski66: the problem with the Sigma 18-35mm Art is that is cannot focus accurately except at the center AF points. The Sigma dock only calibrates the center AF point. Accurate AF requires liveview, but who uses that for fast action work? It is a shame as this lens would have been ideal with the D500.
References:
https://www.dpreview.com/forums/post/57909267
http://nikongear.net/revival/index.php/topic,3754.0.html
http://www.pentaxforums.com/articles/review-news/sigma-18-35mm-autofocus-a-second-look.html

Link | Posted on Dec 19, 2016 at 18:02 UTC
In reply to:

rfsIII: I feel bad for the car dealers in Seattle; judging from the galleries, no one has bought a new car up there since 1975. It's like Havana except with Volvos and Volkswagen instead of Fords and Chevies.

There is a picture of a mid-1980's Toyota MR2.

Link | Posted on Dec 9, 2016 at 16:47 UTC
In reply to:

rugosa: No pretty ladies or cute cat shots ? How am I supposed to judge the quality of this camera ?

There is a dog picture and one cat at #30.

Link | Posted on Dec 9, 2016 at 16:43 UTC
On article Lensrentals tears down the Nikon 105mm F1.4 (157 comments in total)
In reply to:

Favorable Exponynt: So there are gears. They implied it was a ring type, so they lied. Gears can break. Especially plastic ones. Somebody should have them examined to determine whether the lens has a built in technical life span.

At least the AF motor assembly is securely anchored, unlike the Sony "Zeiss" FE 55mm f/1.8. The Zony AF and focus-by-wire motor is just glued to a flat surface and prone to failure (Cicala's 'Linear EM Type 1' motor; see https://www.lensrentals.com/blog/2016/04/a-look-at-electromagnetic-focusing/ ). Once the blob of glue fails, the lens is unusable and cannot, or will not be repaired by Sony's outsourced repair centers.

Link | Posted on Dec 3, 2016 at 19:45 UTC
On article Lensrentals tears down the Nikon 105mm F1.4 (157 comments in total)
In reply to:

nicolaiecostel: Looks like a toy and is made in China and they charge a whole lot of money for it, 2527 USD in my country. And what's with that focus motor and gears, it looks as if they employed a crack team of engineers from Toys R us to design this thing.

Doesn't look good for Nikon if that's what they call top of the line nowadays.

@nicolaiecostel
The comparison to the 85mm Otus is the third fiqure down (https://www.lensrentals.com/blog/2016/11/nikon-105mm-f1-4-e-mtf-bench-tests/ ). The Otus is better in the center and a little better in the corners than the Nikkor. However, the Otus is 2x the price and is manual focus only.

Link | Posted on Dec 3, 2016 at 19:31 UTC
On article DPReview Asks: What was your first camera? (766 comments in total)

Nikon F with 50mm f/1.4 lens while in high school. Had to work weekends as dish washer and busboy at $1/hour to get the cash ($400). Later bought Leica M4 with 50mm 'cron at Navy PX ($300). Still have and use both cameras and lenses.

Link | Posted on Nov 6, 2016 at 18:46 UTC as 113th comment
In reply to:

Under The Sun: Yikes. Table Tennis rubber? Yikes that material is going to absorb tons of dirt, dead skin cells, and gunk from the user's hand rather quickly.

You are assuming that these will be used. I think they will only be touched by gloved hands when they are not on display behind glass.

Link | Posted on Oct 13, 2016 at 06:53 UTC
On article Striding Forth: Canon EOS 5D Mark IV Review (2142 comments in total)
In reply to:

PorscheDoc: Why limit the shot buffer to only 17 raw (https://www.usa.canon.com/internet/portal/us/home/explore/see-legendary/comparison )? At this price point I expected a larger buffer.

"17 shots or more" of the largest files is still much less than 79 shots. The 5ds has a burst rate of 12 or 14. The latter "more rate" is with a UDMA 7 CF card. This "more rate" is still pitiful considering the state-of-art $3.5K DSLR. It would have been easy for Canon not to cripple the 5d4 with a tiny buffer.

Link | Posted on Aug 26, 2016 at 01:24 UTC
On article Striding Forth: Canon EOS 5D Mark IV Review (2142 comments in total)
In reply to:

PorscheDoc: Why limit the shot buffer to only 17 raw (https://www.usa.canon.com/internet/portal/us/home/explore/see-legendary/comparison )? At this price point I expected a larger buffer.

The buffer for 5ds is 12 raw files at 60.5 MB each or 726 MB total (page 151 of 5ds user manual). The D500 buffer is 79 raw files (14-bit uncompressed) at 43.1 MB each or 3405 MB total (page 387 of D500 user manual). The buffer of the D500 is 4.7X that of the 5ds.
If the file sizes of the 5d4 are similar to that of the 5ds, there is no excuse for the small 17 burst size of a supposedly state-of-art camera.

Link | Posted on Aug 25, 2016 at 23:24 UTC
On article Striding Forth: Canon EOS 5D Mark IV Review (2142 comments in total)
In reply to:

PorscheDoc: Why limit the shot buffer to only 17 raw (https://www.usa.canon.com/internet/portal/us/home/explore/see-legendary/comparison )? At this price point I expected a larger buffer.

I think you're correct-another example of deliberately crippling one model to prevent cannibalization of a more expensive one.

Link | Posted on Aug 25, 2016 at 18:32 UTC
Total: 78, showing: 1 – 20
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