Lars Rehm

Lars Rehm

DPReview Administrator
Lives in Spain Madrid, Spain
Works as a Technology Writer
Has a website at http://www.larsrehm.com
Joined on Nov 7, 2007
About me:

Lars is a freelance technology journalist, photographer and industry consultant. He reviews cameras and smartphones and writes about mobile photography and imaging technology for dpreview.com, connect.dpreview.com and a number of other English and German language publications.

As a former member of Dpreview’s testing team he has shot with and tested countless digital cameras of all shapes and sizes but nowadays is capturing many of his images with the camera in a smartphone. He is fascinated by the high rate of innovation in smartphone imaging and the endless creative possibilities offered by mobile editing, connectivity and the fact that your phone is always with you. You can follow him on Twitter @larsrehm.

Comments

Total: 1313, showing: 1 – 20
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On Connect post Sony Xperia Z5 camera review (71 comments in total)
In reply to:

LWanTeD: Honest question:

How important is aperture on such a small sensor? (Smartphone cameras om general).

For example, on FF or APS-C, f/2.0 vs f/2.8: There is a noticeable difference if the final image (Noise, bokeh etc..,) based on that 1 stop difference. Does the same apply to such tiny sensors?

the sensors are generally too small for it to make much difference in terms of bokeh. But it certainly does make a difference in terms of noise. That said, pretty much all higher-end models come with apertures between F1.8 and F2, so the difference is minimal.

Direct link | Posted on Feb 9, 2016 at 22:33 UTC
On Connect post Sony Xperia Z5 camera review (71 comments in total)
In reply to:

Sirandar: 200GB, I haven't seen anything bigger 128GB cards ..... which are actually usually less only 118GB formatted. So even with a 64GB internal memory which is really 58GB, that gets no where near 200GB.

My Note 4 has 150GB total and I carry a "128"GB Samsung flash drive which connects smartly by a USB to go cable when desired.

The answer is that internet and data are far more useful when you are out in the world doing something. I don't even have a home Internet connection. Trust me the home is a better place without it.

Like I am going to download my own data from cloud to get access to it. Thank you Sony and ironically HTC for supporting microSD and open access to your own data on your own phone.

Samsung, I and sad to part ways with you, my Note 4 will be the last.

rumors are Samsung is going back to microSD support with the new Galaxy S7. Keep your eyes on our MWC 2016 coverage in a couple of weeks time :)

Direct link | Posted on Feb 9, 2016 at 18:18 UTC
On Connect post Sony Xperia Z5 camera review (71 comments in total)
In reply to:

h2k: Still wishing For a weatherproof AND stabilized mobile. The AF inconstencies here sound worrisome.

Upcoming Galaxy S7 might be what you've been waiting for :)

Direct link | Posted on Feb 9, 2016 at 17:53 UTC
On Connect post Sony Xperia Z5 camera review (71 comments in total)
In reply to:

piratejabez: Madrid... nice :)

well spotted :)

Direct link | Posted on Feb 9, 2016 at 16:56 UTC
On Connect post Sony Xperia Z5 camera review (71 comments in total)
In reply to:

BubbleGum: I was going to buy this phone, but the 24mm focal length is stopping me. It's too wide.

It's 23Mp in 4:3 and just over 20MP in 16:9 but this being a multi aspect ratio sensor it actually has almost 25MP in total.

Direct link | Posted on Feb 9, 2016 at 16:46 UTC
On Connect post Sony Xperia Z5 camera review (71 comments in total)
In reply to:

BubbleGum: I was going to buy this phone, but the 24mm focal length is stopping me. It's too wide.

it's a multi aspect ratio sensor. You get the 24mm in 16:9 but it's around 28mm when you shoot in 4:3 aspect ratio.

Direct link | Posted on Feb 9, 2016 at 16:31 UTC
On Connect post DxOMark Mobile report: OnePlus 2 (5 comments in total)
In reply to:

brownie314: Panasonic cm1? None of these rankings make sense until that phone is tested.

Panasonic themselves don't call it a phone and it's arguably a different type of device. This is probably why DxO have not tested it but if you are interested you can always read our own test here on connect.dpreview :)

Direct link | Posted on Jan 25, 2016 at 13:18 UTC
In reply to:

SonyA7Rslinger: Wow this is great !!!
Here the results for Sony A7 :
"No results for 'Sony a7' in Miami, FL"

I can see a business opportunity for a7 owners in Miami :)

Direct link | Posted on Jan 8, 2016 at 17:11 UTC
On Connect post Samsung launches Galaxy TabPro S Windows tablet (98 comments in total)
In reply to:

mosc: Does it use the S pen?

yes, seems there is an optional Bluetooth Pen

Direct link | Posted on Jan 7, 2016 at 16:14 UTC
On Connect post DxOMark Mobile report: Samsung Galaxy Note 5 (14 comments in total)
In reply to:

bolador: How about handling.?
Is Api camera 2 fully implemented yet? With speed control an manual focus? Is there any control over the jpg development ala "pictute control"?

we'll look at all those points in our full report. The DxO report purely looks at image quality.

Direct link | Posted on Dec 30, 2015 at 14:17 UTC
On Connect post DxOMark Mobile report: Samsung Galaxy Note 5 (14 comments in total)
In reply to:

pdqgp: Were the tests here done in jpeg mode or did you use the RAW output? I haven't read every word but I suspect jpeg.

My thoughts are that the Note 5 is finally the cell phone camera that as a strong enthusiast photog, which has gotten me to leave the simple P&S cameras home. Unless it's an event that I want to use a zoom on, I tend to use my Note 5 with great success. Especially candids with kids at events.

The RAW output is oh so welcomed and works great. The detail captured is noticeably better than the stock jpeg captures. I do use jpeg on the phone for convenience sake but in cases where I want to control the processing, I do use the pro-mode and RAW. You will be pleased if you're a photog. that is willing to post-process.

Nice job Samsung on putting together a great product.

dxo smartphone testing is all based on JPG output.

Direct link | Posted on Dec 29, 2015 at 15:40 UTC
On Connect post DxOMark Mobile report: Samsung Galaxy Note 5 (14 comments in total)
In reply to:

Fredy Ross: What about the inbuilt battery? How long will it last?

The DxOMark test only looks at camera performance and the battery is not part of that. We'll look at battery life in our own Dpreview test but given the Note 5 is a large device with a large battery I'd bet on battery life being one of its strong points.

Direct link | Posted on Dec 28, 2015 at 17:28 UTC
On Connect post DxOMark Mobile report: Samsung Galaxy S6 Edge+ (16 comments in total)
In reply to:

wetsleet: Is the camera in the S6 Edge+ the same as the one in the plain vanilla Galaxy S6? (the camera pictured in the middle of the 'web' score looks like the ordinary S, to my untutored eye).

apart from dimensions the + version looks pretty much identical to the normal S6 edge. Camera specification is identical as well but it's probably safe to assume that Samsung has at least slightly tweaked software processing etc.

Direct link | Posted on Dec 28, 2015 at 15:22 UTC
On Connect post DxOMark Mobile report: Samsung Galaxy S6 Edge+ (16 comments in total)
In reply to:

Michael Ma: I wonder how it performed a few points better than the Note 5? Isn't it the same camera?

yep, hopefully I'll get a test unit soon. DxOMark does not take those things into account as they purely look at image quality.

Direct link | Posted on Dec 28, 2015 at 14:34 UTC
On Connect post DxOMark Mobile report: Samsung Galaxy S6 Edge+ (16 comments in total)
In reply to:

bloodfire1004: DPReview, you should correct some of your statements in this article. Key statements below:

"With a DxOMark Mobile score of 87 the Samsung Galaxy S6 edge+ just snatches the smartphone camera crown from the Sony Xperia Z5 and places itself on top of the DxOMark smartphone rankings. "

"With a DxOMark Mobile score of 87 the Samsung Galaxy S6 edge+ is the new new number one in the DxOMark smartphone rankings, just outperforming Sony's Xperia Z5 by a whisker."

This is NOT entirely true as S6 Edge+ is TIED WITH THE Z5 for best mobile camera (both have 87 score). Though it should be interesting to note that if you take the average of photo (87) and video (85) of the S6 Edge+, it doesn't add up to 87 (172 / 2 = 86).

I know the new format might be misleading since we got used to looking only at the pictures, but please take the time to check properly before posting your articles. This should be done in the interest of fair and correct journalism.

Thanks!

I've changed this now, thanks for pointing it out. DxOMark has actually just changed its way of displaying results which slightly confused me. Previously decimals in the score were taken into account. Now that's not the case anymore and devices with the same score are simply displayed in alphabetical order.

Direct link | Posted on Dec 28, 2015 at 14:27 UTC
On Connect post DxOMark Mobile report: Samsung Galaxy S6 Edge+ (16 comments in total)
In reply to:

Michael Ma: I wonder how it performed a few points better than the Note 5? Isn't it the same camera?

seems AF performance is the main difference maker, probably needs some research as to why it differs between those two models :)

Direct link | Posted on Dec 28, 2015 at 12:06 UTC
On Connect post DxOMark Mobile report: Samsung Galaxy S6 Edge+ (16 comments in total)
In reply to:

Michael Ma: I wonder how it performed a few points better than the Note 5? Isn't it the same camera?

Performance is very close, probably within the limits of sample variation in my opinion. We'll publish our own report here very soon as well.

Direct link | Posted on Dec 28, 2015 at 11:40 UTC
On Connect post Lightroom Mobile for Android is now free to use (36 comments in total)
In reply to:

PVCdroid: It doesn't read Sony .ARW files so kind of worthless for me.

Photomate is definitely worth a look if you work on a tablet and need support for Raw files other then DNG.

Direct link | Posted on Dec 9, 2015 at 09:10 UTC
On Connect post Apple launches battery case for iPhone 6 & 6s (147 comments in total)
In reply to:

odpisan: With my Prestigio PAP5503 DUO I have no battery problems. I use battery charger only once in 14 (!!) days. Because of big battery it is havier as others .. but perfect in all other terms. For me! The iPhone is only for people who do not respect money.
& my phone was (minimum) five times cheaper.

you charge your smartphone once every two weeks? You can't be using it very much then...

Direct link | Posted on Dec 9, 2015 at 08:54 UTC
On Connect post Lightroom Mobile for Android is now free to use (36 comments in total)
In reply to:

PVCdroid: It doesn't read Sony .ARW files so kind of worthless for me.

well, my guess is the main reason, apart from keeping things simple, for the app working with DNG files is that that is the format used by all Raw-capable Android smartphone cameras. Adobe presumably assumes that most people editing Raw files on a phone will also have shot them on that phone. I tend to agree with them.

Direct link | Posted on Dec 8, 2015 at 11:47 UTC
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