Svein Eriksen

Svein Eriksen

Lives in Norway Norway
Joined on Dec 7, 2003
About me:

No plan


Total: 9, showing: 1 – 9
In reply to:

MayaTlab0: I have a question : is the metamerism score really that relevant, i.e., can we find examples of pictures that show some correlation with the score ?
Regarding dynamic range, it's quite easy to see the effect of measured DR performance in pictures (and even more so since you added a specific page and test shots - thank you for this !), but is it as easy with the metamerism score ? I know this is very anecdotal, but so far the camera I spent the least amount of time correcting its colours either in LR or C1 was my 5DIII. My EM1 has a higher score, and yet, in comparison... well I tend to spend quite a lot of time correcting colours.

Interesting question. It would be nice if someone with enough knowhow could make an article about this, and the consequences of low metamerism score.

Direct link | Posted on Jul 9, 2015 at 19:38 UTC
On Fujifilm X30 First Impressions Review preview (471 comments in total)
In reply to:

whtchocla7e: 2/3" sensor... Did you really listen to customer feedback now, Fuji?

Retro camera, retro sensor

Direct link | Posted on Aug 26, 2014 at 14:45 UTC
On Travel tripods: 5 carbon fiber kits reviewed article (91 comments in total)
In reply to:

Philidors shadow: I have an earlier Gitzo GT1541T Traveler and Markins Q3 Traveler head. The Gitzo is for practical purposes perfection itself (the Markins isn’t far off either). No other photographic item I own is as good at its job, as beautifully designed and made, or as satisfying to contemplate. If you’re at all susceptible to good industrial design a Gitzo Traveler will make you happy.

P.S. I positively despised using travel tripods before I got the Gitzo, though I acknowledge Gitzo may have some worthy competitors today.

I've also got the previous Traveler-model (the older head didn't have quick release) and the Markins head. It don't fold quite as compact with that head, but the Q3 Traveler head has seperate pan knob and is generally a much better head - heavier though, and it increase the price.

Direct link | Posted on Jul 28, 2014 at 16:19 UTC
On Panasonic FZ1000: Not just another superzoom... article (158 comments in total)
In reply to:

Rachotilko: There's one point I missed in this otherwise well articulated opinion : the historical perspective. Several ears ago, "bridge" meant something completelly different than the "superzoom" of today. Compared to today's superzooms:

- the sensor sizes were bigger, at least 1/1.7"
- the reach was much more limited (to around 300-400mm)
- lenses were faster
- optics manufacturing quality was not of cheap feeling and reputation.

I'm talking about devices like Sony F717, F828, Fuji cameras (S6500fd, S9XXX, S100fs, S200exr), Panasonic FZ30, FZ50, Minolta AXXX, etc.

Sadly, this category of devices died out - the last one of them was probably Fuji X-S1 (but that one was unfortunatelly hampered by the overambitious lens design). Their extinction coincides very well with the advent of mirrorless, but also with arrival of their low-cost (but high zoom) siblings - the superzooms.

It seems that the true "bridge" category is back. But the ingredients are still the same.

@Rachotilko: I completely agree on your "historical" perspective, and there's always been some overlap between superzooms and the (original) bridge class.

I wouldn't categorize one of todays superzooms with 1/2.3" sensor a bridge model though, but Canon's G-series and G1 X are bridge cameras IMO (even though the G1 X II lacks a viewfinder). Other current bridge models are Nikon P7800, Fuji X20 and RX100 III.

The FZ1000 is both a superzoom and a bridge model, and currently the only one IMO. RX10 is of course a bridge model, but I wouldn't call anything with less than 10x zoom a superzoom, but there are of course no official categories.

Direct link | Posted on Jun 12, 2014 at 17:15 UTC
On Phase One announces IQ250 50MP CMOS medium format back article (192 comments in total)
In reply to:

nidri: The actual sensor size is 44x33mm. Same size as that of the Pentax 645D. So. How long before Pentax (sorry, Ricoh) announces a 645D II featuring this new CMOS sensor?

Pretty close to Leica S format too

Direct link | Posted on Jan 24, 2014 at 16:44 UTC
In reply to:

RichRMA: A BSI sensor that large? Should be interesting.

The info says 4/3", not mFT. Not sure if that's the same or some new format.

Direct link | Posted on Jan 9, 2014 at 19:10 UTC
On Preview:canon-eos-70d (1311 comments in total)
In reply to:

Erik Magnuson: BTW, OVF phase detect autofocus *can be* as accurate as CDAF - but it takes improvements to BOTH the lens mechanics AND the camera sensor/algorithms. See the charts from where the 5DIII with the new 24mm f/2.8 IS has the *same accuracy/consistency in either mode*. Yet the old 24mm f/2.8 lens on the 5DIII does not. Neither does the new lens on the 5DII. The entire "Autofocus reality" series is worth a read.

Agree, the lens rentals test indicate that 5DIII has better accuracy than other Canon bodies, except for the 1DX. It would be interesting to see comparisions with the 5DIII in addtion to the 70Dvs70D test.

Posted on Oct 11, 2013 at 22:54 UTC
In reply to:

mpgxsvcd: My telescope is only an 800mm lens! Why in the world would an entry level user ever need a 1200mm equivalent camera? They can't possibly hand hold it at that focal length.

At least Panasonic is pushing the limits of reason in a good way. 20mm @ F2.8 is much better than all of the other super zooms.

I just wish they would make a simple 8 megapixel 20-400mm F2.0-F4.0 small sensor fixed lens camera. Give it the true 1080p @ 60 FPS video from the FZ200 and make sure it has RAW. That is a camera that would take great still images and videos.

Eentry level users don't mean that they can't have special interests that require long tele. The Canon SX50 HS (and models from Sony and Fuji) already have 1200mm equivalent. I've used the Canon and it wasn't particulary difficult to handhold at full tele outside during the day.

Direct link | Posted on Jul 18, 2013 at 16:34 UTC
In reply to:

J C Brown: I was very surprised when I came across Jeff Keller’s description the Extra Optical Zoom feature in the DC Resource review of the ZS15 and even more surprised to find an almost identical description in the DPR review of the ZS20 in which he wrote " you'd top out at a whopping 67.5X if you used both at the 5MP resolution; don't forget your tripod!”

When statements such as these appear in "official reviews", it is hardly surprising that there is confusion about the true nature of Extra Optical Zoom.

As can be easily demonstrated, the use of EZ does not increase the need to use a tripod to prevent blurring due to camera shake.

With a camera set for a full frame image at maximum zoom find the lowest shutter speed at which the camera shake warning is not displayed then select a much smaller EZ image. As that does not cause the camera shake warning to appear it is obvious that the focal length is unchanged and the use of EZ has not increased the need to use a tripod.

J C Brown

The focal length is not changed, but the area of the sensor that is used for the final picture is. So given a fixed output size then you'll need a bigger enlargement using EZ-zoom and sharpness is more critical.

If you compare with a crop similar to using the EZ-zoom then there's no difference, but given that both images are used "uncropped" (I know EZ-zoom is cropping) then you actually need faster shutterspeeds (or a tripod) using EZ-zoom.

Direct link | Posted on Apr 30, 2012 at 18:21 UTC
Total: 9, showing: 1 – 9