器材 【转帖】关于PENTAX的几点个人看法 供新人参考

[HSK]

作者: eglington

Olympus E330，一机两套头才900多加币

Pentax k10D+18-55套机900多美金，跟nikon d80套机价格一样

e330和k10d不在一个档次。

[HSK]

最近Pentax的消息一般来自欧洲，尤其是前东欧国家，没想到这次韩国人琢磨出了进入K10D工程模式菜单的方法！

在家电上玩过工程模式的朋友一定知道，这是厂家维修部用来调整、微调机器的“后门”，一般只有内部的维修手册里面才会有详细说明。据说此韩国人并非Pentax员工或相关人员，不知道是如何琢磨出来的，也许是反汇编或者反编译firmware的二进制文件？

http://forums.dpreview.com/forums/re...ssage=22013971

看看如何微调AF精度：

Here's How-to-adjust-focus.

1. Your K10D' firmware version must be 1.10.

2. Test shot for focus trouble.

3. Turn the camera OFF.
While pressing [PLAY]+[OK], Turn the camera ON.
You can see firmware version on LCD screen.

4. Firmware version is appeared,
then press [Fn]->[Fn]->[INFO]->[MENU] within 5 seconds.
You get service menu!!!

5. by pressing [right key]
,Make DEBUG MODE to DEBUG MODE .
then press [OK].
(save and LCD will be black out)

6. Press [MENU] and go to SETUP tab.
then, Press [Up key], you can see TEST MODE.

7. Select AF TEST menu. now you have AF correction menu.
If you have Front-focusing, reduce the value.
If you have back-focusing, increase the value.
after adjust some value, press [OK] and quit out of setup menu.

8. TEST for focus, find out that focus is correct.
(repeat this from 6 for correct focus.)
9. Go to service menu(step 3,4).
Make DEBUG MODE to DEBUG MODE .
then press [OK].(save and LCD black out)

注意：本帖仅仅转载，未经我本人核实或者测试，请慎重。不要调乱了来找我。
dl, ds, ds2, k100d也可用类似方法调整。

[Voice]

作者: eglington

Olympus E330，一机两套头才900多加币

Pentax k10D+18-55套机900多美金，跟nikon d80套机价格一样

器材派真会开玩笑，连别家有几个产品都不清楚，就拿C/N/O去比。

某人当年谈车，虽然只认识Toyota, 也知道烤肉和海烂是不同级别的。

[p200001]

这东西器材派才会出来理论比较.俺始终认为,摄影技术高的人,再烂的机器都能派出好片来.摄影技术烂的人,再好的器材都是浪费.

[HSK]

Pentax正式发布DA*16-50/2.8和DA*50-135/2.8详细规格数据
http://www.dpreview.com/news/0702/07...starlenses.asp

PENTAX Corporation is pleased to announce the marketing of smc PENTAX-DA 16-50mm F2.8ED AL [IF] SDM and smc PENTAX-DA* 50-135mm F2.8ED [IF] SDM. Designed exclusively for use with its digital SLR cameras, these zoom lenses are the first models of the new high-performance smc PENTAX-DA* lens series.

Major Features of the smc PENTAX-DA* Series
1. Highest level of optical quality

The new smc PENTAX-DA* series has been developed through PENTAX’s unending pursuit of the ultimate image quality in digital photography. Bringing together its advanced optical technologies, including aspherical elements, special optical-glass elements and original lens coatings, PENTAX successfully developed a new interchangeable lens series that is superior to any existing lens series in terms of contrast, clarity and description, even at the edges.

2. Innovative SDM System for smoother, quieter autofocusing operation

These two new smc PENTAX-DA* zoom lenses come equipped with a new SDM System, which assures smoother, quieter autofocusing operation using a built-in supersonic motor. When mounted on the PENTAX K10D digital SLR camera body, the focus mode is automatically switched to SDM-assisted autofocusing.+ When mounted on other PENTAX digital SLR camera bodies, the conventional autofocus mode using a camera-mounted motor is selected.

+ The PENTAX K10D firmware must be updated to take advantage of this automatic switching function.

3. Reliable weather- resistant and dust-resistant construction

The smc PENTAX-DA* series features a tightly sealed, weather-resistant and dust-resistant construction to enhance durability for use in the rain or at the dusty locations.

4. Original Quick-Shift Focus System for instant switching to manual-focus operation

The PENTAX-developed Quick-Shift Focus System allows the user to instantly switch to manual-focus operation without any mode changes, after the subject is captured in focus by the AF system. This user-friendly system can be used in both the SDM-assisted autofocus mode using a lens-mounted supersonic motor and the conventional autofocus mode using a camera-mounted motor.

5. SP coating to protect the lens against water and grease

The PENTAX-original SP (Super Protect) coating is applied to the front surface of this lens. Through a vapor deposition process, the lens surface is coated with a special fluorine compound to repel dust, water and grease, making it easy to wipe off fingerprints and cosmetics.

6. Digital SLR-exclusive optical design

This lens is exclusively designed for use with PENTAX digital SLR cameras, with an image circle perfectly proportioned to the CCD size (23.5mm x 15.7mm), and optics optimized for digital imaging characteristics. Combining high-quality image reproduction, it is a perfect partner to PENTAX digital SLR cameras.

Major Features of the smc PENTAX-DA* 16-50 mm F2.8ED AL [IF] SDM Lens

a. When mounted on a PENTAX digital SLR camera body, this 3.1-times zoom lens covers angles of view from 24.5mm to 76.5mm (in the 35mm format). Thanks to this versatile ultra-wide to medium-telephoto coverage, it can be used as a handy standard zoom lens in a wide variety of applications, including landscape, snapshot and portrait.

b. Incorporating two ED (extra-low dispersion) elements and three aspherical elements, this standard zoom lens effectively compensates for chromatic and spherical aberrations.

Major Features of the smc PENTAX-DA* 50-135 mm F2.8ED [IF] SDM Lens

a. When mounted on a PENTAX digital SLR camera body, this 2.7-times zoom lens covers angles of view from 76.5mm to 207mm (in the 35mm format). Coupled with a large maximum aperture of F2.8, it is a perfect telephoto zoom lens for applications such as portraiture featuring beautifully obscured, out-of-focus backgrounds and sports photography freezing split-second action at high shutter speeds.

b. Incorporating three ED (extra-low dispersion) elements, this telephoto zoom lens effectively minimizes the chromatic aberrations which would be particularly detrimental to image-forming performance.

c. This telephoto zoom lens is treated with PENTAX-original ghostless coating to effectively minimize internal reflections in the optical elements and greatly improve the image description of backlit subjects.