Ching-Kuang Shene

Ching-Kuang Shene

Lives in United States Houghton, MI, United States
Has a website at http://www.cs.mtu.edu/~shene
Joined on Jan 21, 2000

Comments

Total: 11, showing: 1 – 11
In reply to:

Andrew: Can anyone comment on the Mavic vs the Phantom Pro 4? I do mostly stills work of landscapes and wetlands. The wetland work is for municipalities where some video is needed but stills as well. The Phantom 4 is near the end of its life cycle and I've always found my old Mavic a bit of a lightweight especially when dealing with wind. I don't see why DJI would offer a new Phantom with the Mavic 3 option but curious if anyone has thoughts or comments. My first reaction was wow...45 minutes of flight time.

Thanks for your thoughts

Andrew

If it is P4P V2 vs. M2P, it could be a hard choice. I have both, but I would prefer M2P if portability is an issue while in general I prefer P4P V2 for its mechanical shutter. I general, there is no comparison between M3P and P4P V2. I ordered a copy of M3P Cine and hope to get it soon (by year end).

Link | Posted on Nov 9, 2021 at 09:53 UTC
In reply to:

yslee1: Even smaller sensor, similar price; not sure what's the appeal in this case.

It may appeal to those who are not satisfied with the current sub-250g drones such as ZLRC SG108, Eachine EX5, JJRC X9PS, Holy Stone HS510, BUGS B7, etc. etc. The major issue to me is that the Standard version is over 250g at 258g and the Pro version, which weighs less than 250g, is not available. I have the FIMI X8 SE 2020, which performs rather good, but IMO not as good as my trusted Mavic. Definitely it is not as good as my M2P, P2P V2, PA2. However, it is good enough and better than many 4K drones about the same price. Frankly, I don't like its color rendition and rather high contrast. For 4K video, I still prefer to use my Mini 2 if I have to travel light. In many case, my Mavic Mini still works fine even though its video is only 2.7K.

Link | Posted on Apr 4, 2021 at 04:26 UTC
In reply to:

Prognathous: So this drone is basically a Mini 2, but without the reputation and brand recognition of DJI and for the same amount of money? What a compelling sales pitch.

Well, the FIMI X8 Mini with a Standard battery weighs at 258g. You need the Pro version battery to reduce to less than 250g. Therefore, if you buy the Standard version, then you need to register your drone. Currently, the Pro version, which adds 1 minute of flight time, is not available yet. Banggod.com only carries the Standard version.

Link | Posted on Apr 4, 2021 at 04:21 UTC
On article Apple confirms it’s discontinuing its iMac Pro lineup (415 comments in total)
In reply to:

Sourov: I am here to read the reasonable and logical comments of Mac vs Windows.

OK. I have been a Windows user since Windows 3.0 and have gone through 95, 98, 2000, NT, XP and Win10. Now, most computers for my work are Mac computers with the top end being the iMac Pro, the discontinued one. I don't care because for the usual work I am using a MacBook Pro 16" Intel and a Apple Mac Mini with the M1 chip. If necessary, I am going to get a Mac Pro if my iMac Pro cannot cut it. REASON? it is very simple. I am tired of Windows system lousy development and its lousy GUI.

Link | Posted on Mar 11, 2021 at 09:29 UTC

I did this long time ago and posted my finding on a Sony NEX5 here: https://www.dpreview.com/forums/post/53741070

Link | Posted on Mar 4, 2020 at 11:53 UTC as 14th comment

Sorry. This is not the earliest version. The earliest version has a meniscus lens, which is the one shown around 0.05. The one taken off from the camera is perhaps a Kodak Anastigmat lens or a Rapid Rectilinear (a better lens). Video mode does not need very high resolution, and sharpness may still be good. https://www.dpreview.com/forums/post/62974485 is an article of mine posted on the Adapted Lens Forum. If you are interested in old lenses, here are two more: Kodak No.3 Brownie: https://www.dpreview.com/forums/post/62460250 and Dallmeyer Rapid Landscape: https://www.dpreview.com/forums/post/57203388

Link | Posted on Sep 24, 2019 at 04:32 UTC as 10th comment
In reply to:

zakaria: Chinese companies will swallow this market soon as they do now in the mobile phone market. True They are working slowly, but they seem to have a plan to control this market and perhaps find a Chinese company or more enter the camera market soon

I am not sure about this. Japanese can do a much better job if they want to do it. Chinese companies could swallow the low cost portion. From mid-level and up, it is basically controlled by Japanese and German. Samyang/Rokinon/Bower/... could be between Chinese and Japanese. So far, I would bet Samyang will survive and kill some lower end Chinese lens makers very soon, because Samyang made better lenses.

Link | Posted on Apr 27, 2019 at 05:07 UTC
On article Minolta DiMAGE V hands-on review (286 comments in total)

I do believe my review appeared nearly 6 years ago is more comprehensive, although it is in Chinese: http://blog.dcview.com/article.php?a=DjMBYQJmAjVTMQ%3D%3D

Link | Posted on Apr 4, 2019 at 02:29 UTC as 14th comment | 1 reply

Ha, I have the F3AF and its two AF lenses, AF 85mm f/2.8 and AF 200mm f/3.5, both being excellent lenses with good contrast and excellent resolution.

Link | Posted on Dec 12, 2018 at 08:38 UTC as 16th comment | 3 replies
On article Rare Nikon 1200mm F11 pops up on eBay (119 comments in total)
In reply to:

Ching-Kuang Shene: I have both this Nikon and the Canon FL 1200mm f/11 for years. They perform equally well. However, I'd like to use a lighter Celestron C6. Please see http://www.dpreview.com/forums/post/57699150 for the Celestron C6 results. Some lens vibration can be seen in a few images.

Here is an article on the four earliest Nikon long lenses: 400mm, 600mm, 800mm and 1200mm. Well it is in Chinese: http://blog.dcview.com/article.php?a=BThTPgZuBjUDZA%3D%3D

This one is Canon FL 1200mm f/11 SSC: http://www.cs.mtu.edu/~shene/FORUM/Taiwan-Forum/Family-Notes/004-Moon-Shots-2014-Autum/LENS-Canon-1200-11-600.jpg

This one is Pentax SMC 100mm f/8: http://www.cs.mtu.edu/~shene/FORUM/Taiwan-Forum/Family-Notes/004-Moon-Shots-2014-Autum/NEX5-Pentax-SMC-Takumar-1000-f8-600.jpg

But, this one is really powerful: Celestron C8 2302mm f/10: http://www.cs.mtu.edu/~shene/FORUM/Taiwan-Forum/Family-Notes/004-Moon-Shots-2014-Autum/LENS-C8-D7000-600.jpg

Image quality wise, the Canon and Nikon are far better than the Pentax and the C8.

Link | Posted on Jun 25, 2016 at 06:39 UTC
On article Rare Nikon 1200mm F11 pops up on eBay (119 comments in total)

I have both this Nikon and the Canon FL 1200mm f/11 for years. They perform equally well. However, I'd like to use a lighter Celestron C6. Please see http://www.dpreview.com/forums/post/57699150 for the Celestron C6 results. Some lens vibration can be seen in a few images.

Link | Posted on Jun 25, 2016 at 06:30 UTC as 9th comment | 1 reply
Total: 11, showing: 1 – 11