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Wednesday 1 June 2011

Digital cameras use filter what features?

One, if the use of digital SLR Olympus BLM-5 charger is not a professional, are common DC digital camera, then use the filter is there a connection problem, this is because ordinary DC digital camera AF focus motor power is lesser, activity is not high, the lens strength directly in front of the lens weight using filter damage easily camera, then need to use and fuselage directly connected to answer the ring, have on market domestic and original, the type of all sorts of different brand, pick ring, the price is in commonly 60-150 yuan, had meet ring, we can in ordinary DC digital cameras in the use of various filter.

Second, the common DC digital camera, because it cannot replace lens camera when beyond, we will focus variable from lens and use increase additional lens, wide Angle on the market has many types, specifications are available.

Third, a polarizer problems, because PL (line partial) special circumstances, can affect digital camera Olympus E-PL2 charger with AF function, and metering, make objects interfere with CCD imaging edge (mainly edge) appear the interference, so rainbow shape to use CPL began buying (garden partial), the result is same, the price is a little expensive.

Four, film adaptations stents, this is digital cameras Olympus BLS-5 charger in extending, Saul has no bottom can take silver film converted into digital files, the effect is not very ideal, nikon CoolPix 995 have this function.

Five, infrared filter, at a close range, with limited perspective function, at present only SONY F707, F717 directly photographed better infrared piece other DC depends, qiao words can use low wavelengths infrared shoot.

Design knowledge resources nets

Six, some axial DC digital camera Olympus E-5 charger, by not through TTL metering, in using a polarizer, gradual change mirror, grey mirror need exposure compensation.

Seven, because digital imaging later color can be convenient adjustment, don't recommend using a pure color filters, way reduce investment, 2 will ensure the image quality and avoid exposure compensation. As mentioned earlier colour temperature filter problems Battery Charger

Notebook radiator purchase common problem

Come on, let's get straight to the point, don't say that noise, the author collected according to the HP 403808-001 Battery usual problems come first answers to it.

Question: how to judge whether I need laptop radiator?

Answer: if you see notebook HP 396600-001 Battery from software at a higher temperature (CPU, video card often working in the 70 ° above), notebook itself is larger, or you think noise laptop touch is hot now you think, even the laptop is currently placed Angle inappropriate can choose to buy laptop radiator, if you are not in above range so you have 99% don't need laptop radiator.

Although the small size of the place of the effect is very good

Question: if my notebook HP 371916-001 Battery temperature is very high, mean I should buy laptop radiator?

Answer: be not such, notebook temperature is very high may have the following reasons, 1. Laptop cooling system not to force their; 2. The notebook itself temperature control strategy tends to mute; 3. Laptop cooling channels to be dust blocked itself. For 1 and 2. Speaking buy laptop HP 371913-001 Battery radiator will have more significant effect, but to 3. Speaking not clear dirt purchase radiators is very weak role.

Problem: buy laptop radiator is fan bigger is better?

Answer: for laptop, it is the largest notebook radiator role to bottom create enough convection, and to the bottom of the laptop HP 383963-001 Battery cool enough to provide a large enough 2 the romantic, fan big doesn't mean can create good enough convection, also does not mean lower noise, specific circumstances vary by this.

Question: the fan should be notebook radiator? Good or supply good breeze

Answer: with on a question answer similar, notebook radiator in the bottom is mainly to create convection, convulsions supply can cause good convection, but considering the notebook itself cooling system to air suction give priority to, so also should with air laptop HP HSTNN-IB09 Battery radiator for good, in fact we can also see that most laptop radiator are supply air type.

Problem: low noise notebook radiator is certainly a good radiator?

Answer: not so! Low noise notebook radiator basic can determine for low performance laptop in the actual work the radiator, environments notebook itself noise and radiator noise is harmoniously, if notebook HP HSTNN-OB20 BatteryHP HSTNN-UB09 Battery itself is larger, choose noise big noise performance strong radiator models often can play better mute effect, and vice versa.

Contact cooling often can have very magical effect but for laptop its own material demanding

Question: whether can carry higher notebook effect is good? The radiator

Answer: in theory, but in fact not so to say is so basic. Many users notebook higher temperature is often because too little into the wind notebook HP HSTNN-UB09 Battery bottom space, as long as have caused unsmooth enough into wind space can have very good cooling effect. But want to notice that there is some special circumstances, the author will last this paper explained.

Question: whether aluminum notebook will have better performance?

Answer: because most laptop does not utilize contact heat dissipation, so aluminum notebook radiator doesn't mean with better performance, but in fact because most manufacturers of high-grade products are Laptop Battery using all aluminum or aluminum panel, i.e. logically we can buy high-grade radiator made widely used aluminum.

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