viking79

viking79

Lives in United States Marion, IA, United States
Works as a Software Engineer
Has a website at http://viking79.zenfolio.com
Joined on Nov 27, 2007

Comments

Total: 645, showing: 1 – 20
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In reply to:

Yxa: Why is it called Super 35 its smaller than the still 35mm
It should be called sub par 35 (that would be more true)

Yxa, it is a video camera, since film runs vertically through the camera you get smaller frames than 35mm stills. A link to fractional sensor sizes has nothing to do with Super 35mm, which uses APS-C for the reasons Zorgon mentioned.

Direct link | Posted on Feb 24, 2015 at 13:54 UTC
On More things we found cut in half (CP+ 2015 edition) article (140 comments in total)

Great shots! I love the cut in half Otus lens, interesting because it is actually entirely metal. Even the best mass production lenses use a large amount of plastic. The 'samich' made me jump as I was expecting another lens. Nice one, looks delicious :)

Direct link | Posted on Feb 15, 2015 at 19:32 UTC as 36th comment | 1 reply
In reply to:

Rooru S: E-mount philosophy totally defeated. The SEL35F28Z and SEL55F18Z are great lenses, with good quality and good size. So far the only good ''new'' lens is the SEL28F20. But I don't get why a 35mm F1.4 has to be so big. I'm quite sure if they tried something like Voigtlander 35mm f1.4 with slightly better optics and a servo motor moving the MF ring and make a new housing for it we could still get a smaller package.

Unless the 35mm f1.4 has excellent corner to corner sharpness wide open, I don't get the size...

The macro on the other hand...if it doesn't extend, that's a good point. But the size doesn't help too much.

JACS, it doesn't have to have built in adapter. For good corners you need image space telecentric lens. The rear lens element ideally needs to be larger than the image sensor in this case. Placement might be almost touching the sensor in a fixed lens camera (Sony RX1 for example).

There doesn't need to be an air gap there as there must be on an SLR. It just so happens that the Sony uses one, probably to make the rear element larger because the throat opening of E mount is smaller than it should be. To make the element large enough for performance they have to put it out to make room for mount and finger clearance (Sony has the mount very close to grip and can't hold camera without that gap there).

Direct link | Posted on Feb 13, 2015 at 18:34 UTC
In reply to:

mosc: So they release an IBIS body and now they want to sell you a bunch of giant OSS lenses for it?

Double IS is extremely bad. They would confuse each other. Thanks nandbytes that it uses IBIS. I wonder what it does with long focal lengths, where OIS would be better regardless (like in 70-200mm).

Direct link | Posted on Feb 13, 2015 at 18:31 UTC
In reply to:

Lou P Dargent: I like the A7, but that Zeiss 35 f1.4 looks like a DSLR lens + adapter. It is bloody huge. Does it even have OIS?

And no, I'm not getting confused by the small body size of the A7.

It is bigger than this:

http://www.bhphotovideo.com/c/product/735000-USA/Nikon_2198_AF_S_NIKKOR_35mm_f_1_4G.html

35mm is roughly the distance from the tip of his thumb to the knuckle.

I know that you can't make a direct correlation between focal length and lens size, but that monster is almost as big as my Nikkor 180mm f2.8 AI-S boat anchor.

I hope it is about performance. A 35mm f/1.4 lens for full frame mirrorless can be made very small (Cosina Voigtlander 35mm f/1.4 for Leica M is an example), but performance suffers at the corners at large apertures. If this lens isn't excellent in the corners and wide open I don't see it doing that well.

Direct link | Posted on Feb 13, 2015 at 18:29 UTC
In reply to:

Rooru S: E-mount philosophy totally defeated. The SEL35F28Z and SEL55F18Z are great lenses, with good quality and good size. So far the only good ''new'' lens is the SEL28F20. But I don't get why a 35mm F1.4 has to be so big. I'm quite sure if they tried something like Voigtlander 35mm f1.4 with slightly better optics and a servo motor moving the MF ring and make a new housing for it we could still get a smaller package.

Unless the 35mm f1.4 has excellent corner to corner sharpness wide open, I don't get the size...

The macro on the other hand...if it doesn't extend, that's a good point. But the size doesn't help too much.

No it doesn't, the CV 35mm f/1.4 for Leica M is a tiny lens as OP pointed out and is a full frame 35mm f/1.4 with short flange distance. However, the CV 35mm f/1.4 is also not good wide open, especially in the corners. I would expect this design is to improve corner and wide open performancing making it much larger.

Direct link | Posted on Feb 13, 2015 at 15:24 UTC
In reply to:

mosc: So they release an IBIS body and now they want to sell you a bunch of giant OSS lenses for it?

They are a bit confused... :)

Honestly though, the A7II would be a great camera for a legacy lens shooter. It would be perfect with all those Canon FD lenses, etc. It is also meant as an A mount replacement, I think some users didn't want to switch from other A mount cameras to E mount in fear of losing IBIS.

Direct link | Posted on Feb 13, 2015 at 15:23 UTC
On CP+ 2015: Canon shows 11-24mm in cross-section article (63 comments in total)

It always amazes me how complicated modern zoom lenses are, and that they work as well as they do. Beautiful.

Direct link | Posted on Feb 13, 2015 at 05:23 UTC as 23rd comment | 1 reply
On CP+ 2015: Hands-on with new Pentax K-S2 article (194 comments in total)
In reply to:

22codfish: None of the new CaNikons still don't have an ATV shooting mode.

Less the same thing. It is overloading a function and making it is something it is not. Quickly set the camera to manual and forget auto ISO setting and it is crap. On the D7000 for example it was very difficult to change the camera out of auto ISO mode, so it was difficult to shoot in manual. They fixed this on later cameras. Pentax is the only one that gets this right, unfortunately, Canon and Nikon push the terrible auto ISO and manual mode so everyone else thinks that is a good idea.

Direct link | Posted on Feb 13, 2015 at 05:20 UTC
In reply to:

ProfHankD: Well, it's nice to see I'm not the only one 3D printing camera prototypes... but this doesn't give me warm fuzzies about when we'll see the actual product. This reeks of being only a marketing test. Let's hope I'm wrong. ;-)

It is a good commitment from Ricoh saying give us this chance before you leave to shoot an A7R, D750, or one of the other great full frame cameras available. Their base eroded quite a bit under Hoya, nice to see Ricoh stepping up.

Direct link | Posted on Feb 13, 2015 at 05:11 UTC
On Sigma dp0 Quattro announced with 14mm F4 lens article (138 comments in total)
In reply to:

christom: Where are the pictures of the new camera??

I meant 15mm f/4, sorry, but I think same statement holds true for both.

It depends on image quality. If the 14mm on the Sigma is mediocre, I agree, no point. If the 14mm on the Sigma is the best 14 mm lens, then yeah, there is a point, you change for better image quality, not compactness.

I sort of agree though, I think the Sigma is a bit silly. I would rather see a mirrorless camera offering those same lens choices, since none of them are really compact. Make the mount large enough that they can make the rear element large to maintain performance, etc.

Direct link | Posted on Feb 10, 2015 at 16:49 UTC
On Sigma dp0 Quattro announced with 14mm F4 lens article (138 comments in total)
In reply to:

Richard Franiec: So, to get 4 very good prime lenses we need to purchase 4 cameras attached to them? It is about time for Sigma to consider one well made body with the lensmount and a few great primes so everything can fit in a smallish bag. A couple of high quality zooms would be welcome as well.

Than the Sigma DP series is not for you. You realize that Sigma has a SLR camera with interchangeable lenses, right? The SD1.

I noticed I had a typo earlier, should have been SD1, not DP1. Sorry about that.

Direct link | Posted on Feb 10, 2015 at 16:47 UTC
On Sigma dp0 Quattro announced with 14mm F4 lens article (138 comments in total)
In reply to:

christom: Where are the pictures of the new camera??

My hunch is that this will be the best 14 mm APS-C lens available as well. I hope they make an E mount version of it.

Pentax's 14mm compact f/4 is also not the best lens in the world, fairly soft at the corners.

Direct link | Posted on Feb 10, 2015 at 15:08 UTC
On Sigma dp0 Quattro announced with 14mm F4 lens article (138 comments in total)
In reply to:

Richard Franiec: So, to get 4 very good prime lenses we need to purchase 4 cameras attached to them? It is about time for Sigma to consider one well made body with the lensmount and a few great primes so everything can fit in a smallish bag. A couple of high quality zooms would be welcome as well.

Don't like the Sigma DP1? I think that a sigma mirrorless would be nice, but I imagine most people will pick only their favorite focal length and buy it, and not actually buy all 4. For example, this could augment any other camera system fairly effectively. When you want to shoot wide, pull it out of your bag, otherwise use your other ILC camera.

Direct link | Posted on Feb 10, 2015 at 15:06 UTC
In reply to:

RStyga: Hopefully the WR design will prevent the duo-cam design from sucking dust. The lens is, however, very dark... F4-5.6... a F2.8-4 would be much better even if it would make the lens' diameter larger.

It is really no darker than any other kit lens. Most are f/3.5 to 5.6, and most, especially the compact ones, hit f/5.6 by 35 mm or so. I wouldn't have minded seeing 16mm on the wide end to be more comparable with other 16-50mm compact collapsible zooms.

Direct link | Posted on Feb 10, 2015 at 03:26 UTC
On Canon EOS 5DS / SR First Impressions Review preview (2270 comments in total)
In reply to:

viking79: Looks like they are going for possible 645D and other medium format audience.

Nice cameras, sensor/processor upgrade to 5DIII? Too bad about the price, a 50 MP sensor doesn't really cost any more to make than a 20 MP sensor. I suppose they can justify it being the highest resolution, but I never thought MP alone should up the price of a product.

Sony did this with the A7R and A7S as well, ask dramatically more for the same camera because of different sensor. They did a good job of modeling Canon's business plan :)

Just to clarify. The cost to fabricate a 50 MP sensor and a 20 MP sensor are virtually identical. To only fabricate a single sensor would be cheaper for them, but then they wouldn't be able to charge you 20% more for essentially the same cost to them. I am not picking on Canon here, it is a smart business plan. Apple does it with their products, I guarantee that a 128 GB phone only costs them pennies more to manufacture than a 16 GB phone, yet they sell it for $200 more (pennies might be stretching it, but it is on the order of dollars for the silicon cost).

Direct link | Posted on Feb 6, 2015 at 21:24 UTC
On Canon EOS 5DS / SR First Impressions Review preview (2270 comments in total)
In reply to:

viking79: Looks like they are going for possible 645D and other medium format audience.

Nice cameras, sensor/processor upgrade to 5DIII? Too bad about the price, a 50 MP sensor doesn't really cost any more to make than a 20 MP sensor. I suppose they can justify it being the highest resolution, but I never thought MP alone should up the price of a product.

Sony did this with the A7R and A7S as well, ask dramatically more for the same camera because of different sensor. They did a good job of modeling Canon's business plan :)

It means R&D costs take longer to recover, but Canon could offer the 5DIII even cheaper if they only made the 50 MP sensor, it would actually cost them less to only have one sensor.

Direct link | Posted on Feb 6, 2015 at 21:19 UTC
On Canon EOS 5DS / SR First Impressions Review preview (2270 comments in total)

Looks like they are going for possible 645D and other medium format audience.

Nice cameras, sensor/processor upgrade to 5DIII? Too bad about the price, a 50 MP sensor doesn't really cost any more to make than a 20 MP sensor. I suppose they can justify it being the highest resolution, but I never thought MP alone should up the price of a product.

Sony did this with the A7R and A7S as well, ask dramatically more for the same camera because of different sensor. They did a good job of modeling Canon's business plan :)

Direct link | Posted on Feb 6, 2015 at 21:06 UTC as 297th comment | 15 replies

About f___ing time. :) Exciting news indeed.

Direct link | Posted on Feb 5, 2015 at 17:17 UTC as 40th comment
On Hands-on with Samsung's new NX500 article (335 comments in total)
In reply to:

Trk: It is about price. NX1 with its price is nonsence, whereas price of this camera having the same sensor as NX1 is actually very good, I think. I would be able to recommend it, because that sensor for this money is very nice.

NX1 is a tank, it is built very solid, high quality viewfinder optics, etc. It does cost a lot more to manufacture. Is it overpriced? Only if it doesn't sell. Considering the price hasn't dropped yet in over 2 months I guess it is doing better than some other Samsung models (speaking to US market only).

Direct link | Posted on Feb 5, 2015 at 17:04 UTC
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