Tag Archives: phase detect

Rather Than Waiting In Vain For Panasonic Lumix LX200 Consider Samsung NX500.

by Anura Guruge


“DPReview” side-by-side comparison.

Click images to ENLARGE and study here.

lxnxdfgdg lxnxdfgdg2 lxnxdfgdg3


There is also this YouTube video
that rates the NX500 over the LX100.


The Samsung NX500 with a zoom lens should be better than a Panasonic Lumix LX200APS-C sensor, on sensor PHASE DETECT and an insane 28MP resolution.

So give it some serious thought.


Related Posts:
++++
Check Categories ‘Camera News for other related posts >>>>
>>>>
Search on ‘Panasonic’ for MANY other posts too >>>>


by Anura Guruge

Samsung NX500 Epiphany — Why Not Settle For An APS-C Sensor?

by Anura Guruge


samsungnx500

“DPReview” side-by-side camera comparison. It is DIFFICULT to ignore sensor size.


As with the Fuji X-T2 the Samsung NX1 was another camera I lusted after for months and then, at the last minute, shied away because of technical (as opposed to financial) considerations.

I will also readily admit that my requirements, fancies and demands tend to change, sometimes within days — and have over my 2 year saga for a set of long-term cameras. Maybe I will never have a set of cameras I keep for that long. C’est la vie.

Anywho … I think I had dismissed the Samsung NX500 BECAUSE it did not have a viewfinder.

That requirement has changed in the last month! Since I have had the Nikon P900 I have rarely used the viewfinder. So I now know that I can live with just a good LCD.

So the Samsung NX500 is back in the fray.

It has phase-detect AF and I really want phase-detect. And it is an APS-C.

And what I am looking for is a compact.

Still not sure what my eventual BIG camera will be.


Related Posts:
++++
Check Category ‘Camera Notes’ for other related posts >>>>


by Anura Guruge

I Have No Choice BUT To Carefully Evaluate Canon’s ‘Dual Pixel AF’ In ‘Live View’ Mode.

by Anura Guruge


dualpixelaf

Click to ENLARGE and read here. What you get when you Google “Dual Pixel AF”. It is a Canon proprietary technology.


dualixelsdfsfsf

From “Better Photography”. Good introduction. Click image to access original with explanation of what Canon was implemented.


caon7dii

Click to ENLARGE and read here. Canon’s description on its 7D Mk II page.


cameralabsdsfsf

Click to ENLARGE and read snippet here. What ‘Gordon Lang’, of ‘Camera Labs’, cameralabs.com, has to say re. Nikon D500. Cameralabs.com, of course, has the FULL Nikon D500 review.


I will confess, with contrition, that I had NOT paid ENOUGH attention to Canon’s “Dual Pixel AF” because it was only available on 4 cameras — 3 of them ‘pretty’ old (in terms of today’s 12-month technology refresh cycle) and the 4th, the Canon 80D, was being touted as a mid-level DSLR.

But the recent spate of rumors about the soon to be announced Canon APS-C MIRRORLESS M5 got me digging into “Dual Pixel AF”.

Anybody who has been paying any attention to my 10 cameras in 2 years SAGA will know that brilliant AutoFocus is my Holy Grail — especially since my eyes, never that good, are getting older by the day. The reason I decided to get a Nikon D500, rather than the new Fuji X-T2 (which I lusted after for 9 months), was AF — nothing else.

But the D500’s AF prowess is ONLY in Viewfinder (VF) phase-detect mode. There is no phase-detect in Live View (i.e., LCD) mode. More and more I am opting to shoot LCD mode because I just tend to see better with both eyes open looking at a 3″ screen. 99% of the 2,594 pictures I have taken with my new Nikon P900 (which I am getting rather fond of) — in 10 days — have been in LCD mode!

Canon’s DUAL PIXEL AF will give me phase-detect in LCD mode.

I think I could live with the Canon 7D Mk II or possibly the 80D.

IF the M5 has good specs I could go with that — given my innate fondness for mirrorless cameras. I could also save myself quite a bit of money. I have no aversion to Canon. I had a Canon T3i for nearly a year and it is still in the family (for a refreshing change) in that Devanee has taken ownership of it


Related Posts:
++++
Check Categories ‘New Hampshire‘Nikon’ for other related posts >>>>


by Anura Guruge

Fujifilm X-T2 Autofocus Capability Questioned — Especially In Terms Of ‘Phase Detection’.

by Anura Guruge


xt2pd1


Click here
to access original DPReview post.


fujifilm-x.com link referenced above.

xt2pd2

Click image to access the original from Fuji no less! This is not funny.


This is NOT good news for Fuji X-T2 fans.

Phase Detection‘ is what was supposed to make the Fuji autofocus better.

DSLRs, like the Nikon D500, use ‘Phase Detection’ 100% of the time when the mirror is down (i.e., viewfinder-mode).

If the X-T2 is using ‘contrast detection’ 66% of the time we are unlikely to see that bigger an improvement in AF.

I am SO GLAD I decided against getting a X-T2 and yesterday embarked on my new life with Nikon by getting a P900 to begin with (fully aware that the P900 is NOT a DSLR and as such does not have ‘Phase Detect’) while I mentally prepare myself to buy a Nikon D500.


Related posts:
++++ Check Categories ‘Fuji’,  ‘Six Images’ & ‘Camera Notes’ >>>>
++++ Also search ‘Fuji’ & ‘Nikon’ >>>>


by Anura Guruge

Sony RX10 III — Autofocus ‘Spatial Object Detection’ Still Based On Contrast AF.

by Anura Guruge


sonyrx103spatial111

From Sony’s announcement of the Sony RX10 III. Click to ENLARGE and read here. Use link below to access original.

Click to read original Sony Press Release for the Sony RX10 III.


sonyrx103fastafsony

Click to ENLARGE. From Sony’s product page for the RX10 II at Sony.com.


sonyrx103amazondpreciere

Click to access DPReview ‘First Impressions’ video at Amazon (who own DPReview). At the 1.50 minute mark (show) there is a discussion on CONTRAST-based autofocus.


DPReviews ‘criticism’ of the Sony RX10 II, though  got a DPReview 82% rating Gold rating, mainly centered around its Auto Focus (AF) capability.

From what I can see the new RX10 III still uses the same Contrast-Detect AF, as in the RX10 II, rather than having Phase-Detect. The above video highlights this.

Appears that the ‘Spatial Object Detection’ touted in the RX10 III Press Release works with Contrast (and is really an enhancement to Contrast-Detect).

This worries me. Though I use Manual Focus more than most, I can only do so on still objects. This is the one RX10 III ‘issue’ that gives me serious pause.


Related posts:
++++ Search ‘images’, ‘Sony’, ‘Lumix’ & ‘Fuji’ for other posts >>>>

++++ Check Category ‘Six Images’ >>>>


by Anura Guruge