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Yes, the Sigma Nikon Port 50 can be autofocused on the D40 and is also the only prime lens that can be used for autofocus on the D40 today, but**Around 4000, the lens with a built-in focusing motor is basically above 2000, your**can only buy the original 50 or can not autofocus on the D40, can only focus manually. Nikon's new AFS Nikkor 50 can also focus on the D40, but this lens is only available in larger cities, Shanghai, Beijing, Guangzhou, Shenyang, etc... **Around 4000.
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There is no N-port fixed focus with a motor within 3000, and there are not many fixed cokes with a motor, as if the cheap ones are Sigma, Sigma, N's 60 micro and 105 micro, Sigma, respectively, 3220, 3700, 4000, 5600 and 4600. The overall feeling is that there is no cheapness. So if you want to play prime on the D40, you have to plan well.
I just use d40, and now I use 5018 manually, welcome to contact us by SMS to discuss.
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There are no good options.
There are more than this number of ** with Sigma.
It's not that the two lenses you used couldn't be used, but they couldn't autofocus, and manual focus could also be used.
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Correct solution, manual focus exhausts you.
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Here, I put aside the -70 and 18-135 three sleeves, as well as the -200 and other expensive lenses that do not match the D40 40X 60 body, and recommend a few advanced lenses for friends who have Nikon D40, D40X and D60 bodies and can't stand low-end lenses, I hope it will help you choose.
Five: More powerful than 100 micro - Nikon AF-S VR 105mm F G IF-ED Micro
Price: 5800 yuan.
Baiwei is the abbreviation of 100mm macro lens, and Baiwei is the main player of macro lenses, but Nikon broke the convention and launched the 105 macro, the world's first macro lens with anti-shake and ultrasonic Ma Sui Da, which not only let but leave other manufacturers' Baiwei far behind, but also pushed Nikol's imaging technology to a new peak.
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There is a loose Zen money: Nikon AF-S VR 105mm F G IF-ED Micro Jiaochong Mountain Distance Conversion*
Cost-effective: Tamron 3000 or so. I've been using it for 4 years, and the usage rate is 60%.
Nikon D40 set of current market ** is 3200 yuan, Tamron 70-300 lens ** 1250 yuan, second-hand may need to discount half price = 3200 + 1250 = 4450 half discount 2200 or so, change Nikon D80 set with 18-135 head now** 6200 or so, 6200 - your 2200 yuan may need to make up the difference of 4000 yuan, so it is not cost-effective to replace the new, it is recommended that you sell second-hand, Then buy a new machine from the new, maybe you can spend less RMBB The above analysis is for reference only and is not used as the basis for the transaction.