dbateman

Lives in United States Bethesda, MD, United States
Works as a Microscopist
Joined on Jul 27, 2006
About me:

Sony H5
Canon S5 full Spec converted
Olympus E3
Olympus E510 Full Spec Converted
Sigma SD14
Pentacon Six and Kiev 60

Comments

Total: 129, showing: 1 – 20
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I actually see an advantage to using the existing canon/nikon mount. You can make lens designs that extend into the body. Thus the overall length is small. This will need new lenses, which is good for the companies, but also allow for use of old lenses as well.
However if the companies us this as a compromise body to step up to a Dslr, then they will be dead. The comparable advantage and options in m43rds will just kill off these big companies.
Canon and Nikon need to develop uncompromised sensors with phase detect (this is hard) and lenses that extend deep into the body for best image quality.

Link | Posted on May 23, 2017 at 16:28 UTC as 52nd comment | 2 replies
On article You should totally spend 15K on this rare Zeiss lens (6 comments in total)

No thank you!
The first image looked horible.
I will stick to the pentacon six Zeiss lenses. Much better and cheaper.

Link | Posted on May 22, 2017 at 20:05 UTC as 4th comment
On article Analog gems: 10 excellent, affordable film cameras (721 comments in total)
In reply to:

Dr Blackjack: But what film should I use??

Too broad a question. First you have to say what you photograph, and if your willing to develop it.
What I use kodak portra 160, portra 400, and bw400cn. All are color developed.

Link | Posted on May 21, 2017 at 04:10 UTC
On article Analog gems: 10 excellent, affordable film cameras (721 comments in total)

Pentacon 6 film medium format 6x6 should be on the list. Cheap, and makes sense to carry as great larger format, that is smaller and lightish compared to other medium format cameras.
Film 135 format don't add up in my mind. If your going to go film 120 roll just makes sense.

Link | Posted on May 21, 2017 at 04:04 UTC as 166th comment
On article Analog gems: 10 excellent, affordable film cameras (721 comments in total)
In reply to:

Juck: Pentax 6x7 & Yashica Minister FTW!

@dreamjob, as I tell my son "something is only worth what someone else will pay for it".
When olympus official stop making 4/3 all gear took huge nose dive. To give an example I almost bought a like new 300mm f2.8 for $1000! But even I released it would be hard to use and sell so turned it down in the end.
Just keep and enjoy you gear. If your in it to make money, you need to sell almost right away or 30 years latter if interest is brought back.

Link | Posted on May 21, 2017 at 03:41 UTC

Here is my list:
Photivo not developed any more but great
Ufraw, not developed any more but great
Lightzone, active, allows local edits, great
Rawtherapee, active, complex, local edits still experimental, but great.
Gimp, everyone knows
Chasys draw IES, crashes a lot but has potential
Then if you set up a virtual drive in Windows 10
Darktable is available.
Other great software:
Krita
Inkscape
Irfanview

Link | Posted on May 20, 2017 at 05:06 UTC as 1st comment
In reply to:

dylanear: Love this line of thinking.

I just wish there was something like the GM1/GM5, but a tad taller, with front and rear command dials.

And I wish the 20mm 1.7 wasn't quite so large in barrel diameter. Given that the lens elements are very small and the AF performance is mediocre, not sure why it's so big? What's in there taking up that space?

I welcome more excellent quality pancakes like the 20mm 1.7! The 14 2.5 is not all that sharp. The Oly 17mm 1.8 and PanaLeica 15mm 1.7 are great, but a bit long compared to pancakes for pocketable shooting. Really sharp, really small 10mm, 14mm, and 25mm lenses would be fantastic! Small, metal, and very sharp. I don't care what the aperture is as long as it's 2.8 better, just sharp and small.

@beatboxa
Yes Panasonic is the best to do a small fuji t2 like camera, already having the excellent 12mm, 15mm, 42.5mm with aperture rings. Just release the camera with an updated 25mm f1.4 with aperture ring and the system would be perfect. Then latter issue a 17mm lecia with aperture ring to fully complete the system.
Panasonic make it happen! Users want iso dial, shutter dial and exposure compensation dial.

Link | Posted on May 15, 2017 at 21:00 UTC

Best option is to try and get a Panasonic GM5 with either the 12-32mm or 14-42mm pancakes. Full range, option to go faster when need and smallest for in your pocket. But the GM5 with kit 12-32mm has been harder to find. Hopefully Panazonic wakes up and reallizes people want a GM5 body with updated sensor and 4k.

Link | Posted on May 15, 2017 at 18:37 UTC as 98th comment | 15 replies
In reply to:

Marty4650: I am no legal expert, but if ASML claims "they attempted to negotiate an extension of a cross license agreement with Nikon" and failed to do so, then it means they imply that Nikon owns the technology. It sure sounds like they had an agreement, but then it expired, and the parties involved could not agree on royalty fees for an extension.

If a licensing agreement expires, and you fail to renew it for any reason, you just don't have the right to continue using that technology. Perhaps they felt Nikon wanted too much for an extension? It doesn't matter. They have no right to appropriate someone else's intellectual property.

This technology must be vital if it helped ASML get a 90% market share. They need to pay the price Nikon wants, or develop their own technology.

However your forgeting that law does not make sense or follow common sense. If ASML advanced the licenced tech, filed and was awarded patents and is using the advanced form. Then Nikon doesn't have a leg to stand on. This why the 10 patent part is important. Nikon may even loose rights to the old patents if the court rules them obvious, and the new ASML patents ground breaking.

Link | Posted on Apr 29, 2017 at 03:58 UTC
In reply to:

Gabor Ruppert: So this is a lens which supports a smaller sensor than the Sony 10-18, but more expensive, bigger and heavier. What's the point I'm missing?

@daringle you can not directly add filters to the Panasonic 7-14mm. However you can modify it with the 8mm rear gel filter holder part. Then it can take 21x21 square filter gels in the back. There are many forum posts on this. I modified mine and works great. There are linear polarizer gels, nd filters, ir filters and especially for Olympus cameras adding a 1A wratten filter works to cut out the purple blobs. The olympus cameras have weak uv filter on chip where as the panasonic cameras completely block wavelengths below 400nm.

Link | Posted on Apr 28, 2017 at 17:17 UTC
On article The Sony a9 is a 24MP sports-shooting powerhouse (1899 comments in total)
In reply to:

mosc: Ok, but how does it look with a 400mm f4 lens attached to it? I think that grip is still a little small for that kind of weight don't you?

Well in all fairness a 400mm 135 format lens will require a tripod.

Link | Posted on Apr 19, 2017 at 21:29 UTC
In reply to:

Gabor Ruppert: So this is a lens which supports a smaller sensor than the Sony 10-18, but more expensive, bigger and heavier. What's the point I'm missing?

If you want smaller lighter, than buy the panasonic 7-14mm f4. This is an excellent lens. This new Leica is for that extra 5% quality people pay for.

Link | Posted on Apr 19, 2017 at 06:44 UTC
On article Panasonic Lumix DC-GH5 Review (1169 comments in total)

To Dpreview,
I appreciate your reviews, however I find the GH5 review lacking an obvious comparison page. I was expecting and hoping for a direct comparison with the Olympus EM1 mk2. Both cameras have the same price tag, both argue for best AF, both argue for great IS, Panasonic says the GH5 is also for stills. So I would like to see a page with a direct head to head.
Which is better for AF?
Which has better IS?
Does the Panasonic AF four thirds lenses as fast as the Olympus EM1 mk2? I think they might be equal.
Four thirds users want to know these answers, if not, then I do.
Thank you

Link | Posted on Apr 12, 2017 at 18:13 UTC as 34th comment | 6 replies
In reply to:

Infared: If this was a Canon EF mount I would buy one as I would have 12 lenses to hook up to it. They would sell like hot cakes! ....:-(

If you were really skilled you can get a EF mount with matching screws and unscrew the lens mount and swap them. This sometimes worked but very rare. As stated the pin out and comunication is the same, but mounts different. The registration distance is also similar. But this is not ideal. You can dig up some really old posts in the sigma forum about people trying this.

Link | Posted on Apr 10, 2017 at 22:30 UTC
In reply to:

Infared: If this was a Canon EF mount I would buy one as I would have 12 lenses to hook up to it. They would sell like hot cakes! ....:-(

@mescalama the sigma SD mount is a pentax mount with 1mm shorter flange distance and the same canon electrical comunication. There will be no adapters. But if you love the sigma, you can get sigma to mount convert all your sigma lenses to this mount.

Link | Posted on Apr 10, 2017 at 03:15 UTC
On article Fujifilm GFX 50S Review: Modern MF (901 comments in total)
In reply to:

dbateman: This review seems fair and direct for an out of the box camera. Whats not mentioned is that the Fuji is actually capable of 1/800 sync speed with the adapter Fuji has made for the joint fuji Hasselblad lenses.
Also whats not mentioned is the whole adapter culture. Pop over to th GFX facebook page and you can see what the 10000 users have tested on this camera. The sigma Art f1.4 lenses cover the frame, as do the Zeiss Otis lenses. So if you need speed these are your options. Other older lenses faster than f1.8 don't seem to fully cover the sensor, but seems almost all old f2 lenses do. This does not mean that an old f1.4 lens will cover stoped down to f2, as this has not played out.
Also whats being talked about is that it looks that the larger 55x41mm sensor will fit inside, just as sony got a 135 sensor in the NEX, Fuji has a lined out mask square for one. With fuji talking from day one that the lenses are designed for 100+ mega pixels to me says either they have tested the 100Mp 55x41mm sensor and they will cover or Fuji is due to release a camera with the recently anoused new BSI 100Mpixel Sony 44x33mm sensor. New sensor tech will be much better than a sensor that is almost 5 years old.

@Rishi yes I actually do think the lenses will cover and it definently looks to hold the larger sensor. The issue I think is cost. The 44x33mm sensor is really a mass market sensor, thus cheap. This allowed for a cheap cost and fuji market penetration. The large sensor is not used much and low volume so the inital cost would have been huge.
However Fuji now can show they have a market and get Sony to mass produce the larger sensor. So cost will be lower. Starting the other way would have killed DMF. Now things can get exciting.

Link | Posted on Apr 6, 2017 at 10:35 UTC
On article Fujifilm GFX 50S Review: Modern MF (901 comments in total)

This review seems fair and direct for an out of the box camera. Whats not mentioned is that the Fuji is actually capable of 1/800 sync speed with the adapter Fuji has made for the joint fuji Hasselblad lenses.
Also whats not mentioned is the whole adapter culture. Pop over to th GFX facebook page and you can see what the 10000 users have tested on this camera. The sigma Art f1.4 lenses cover the frame, as do the Zeiss Otis lenses. So if you need speed these are your options. Other older lenses faster than f1.8 don't seem to fully cover the sensor, but seems almost all old f2 lenses do. This does not mean that an old f1.4 lens will cover stoped down to f2, as this has not played out.
Also whats being talked about is that it looks that the larger 55x41mm sensor will fit inside, just as sony got a 135 sensor in the NEX, Fuji has a lined out mask square for one. With fuji talking from day one that the lenses are designed for 100+ mega pixels to me says either they have tested the 100Mp 55x41mm sensor and they will cover or Fuji is due to release a camera with the recently anoused new BSI 100Mpixel Sony 44x33mm sensor. New sensor tech will be much better than a sensor that is almost 5 years old.

Link | Posted on Apr 6, 2017 at 02:05 UTC as 78th comment | 3 replies
On article Hasselblad X1D-50c First Impressions Review (316 comments in total)
In reply to:

dbateman: A 0.08EV advantage sounds to me like you need to look at 10 cameras from Fuji and 10 cameras from Hasselblad. I bet with in the brand you would see a 0.08 EV difference. Ie your within your error for looking at the exact same thing!

Ya I know people who can't see a difference between f2 and f2.2 or f2.5 and f2.8. And these differences are 0.3 EV or 1/3 of a stop. I can't imagine 0.08 Ev of a difference to mean anything. Also slight errors in lenses used would equal more than 0.08. Just seems silly to even talk about.

Link | Posted on Apr 4, 2017 at 21:00 UTC
On article Hasselblad X1D-50c First Impressions Review (316 comments in total)

A 0.08EV advantage sounds to me like you need to look at 10 cameras from Fuji and 10 cameras from Hasselblad. I bet with in the brand you would see a 0.08 EV difference. Ie your within your error for looking at the exact same thing!

Link | Posted on Apr 4, 2017 at 10:38 UTC as 32nd comment | 2 replies
In reply to:

dsut4392: Not looking forward to this spreading AT ALL due to the restrictions on laptops & iPads, but from a photographic perspective, this won't cause me much pain. I haven't pulled out my SLR on a plane for years, and you only need to check the _body_ on flights _inbound_ to US/UK. Unless you're shooting a niche system most camera bodies are quickly and easily replaceable in any of the destinations you'll be arriving into from one of the affected hubs, in the very, very unlikely event your bags go missing or contents are stolen. [I acknowledge that back in my student days with no credit card, replacing a camera body would have been non-trivial].

I just think lensrentals and similar are now going to see a lot more business. There are photographers whom dont own any camera system. Just rent what they need when arrive.

Link | Posted on Mar 22, 2017 at 06:17 UTC
Total: 129, showing: 1 – 20
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