Lenses (focal length, crop factor, macro lenses) - Photography with Imre - Episode 5

[jimtube84]

Thanks for the video, I don't know much about photography and am trying to choose a camera. Trying to decide between a dslr and mirrorless but was confused by some numbers I was reading about.

[binarygraphite]

@jimtube84 You're welcome. I hope the video helped clear up the numbers for you; feel free to ask questions if you'd like.

[jimtube84]

@binarygraphite It was the crop factor / focal length multiplier. Thanks for the video :)

[snake3021]

Wow man, so many numbers to take in. Will have to watch this again when sober! Thanks mate

[binarygraphite]

@snake3021 lol Awesome!

[roshraw]

I have a canon 500D camera , i was looking for some wildlife and landscape photography.what kind of lens should i have. i only have the basic lens

[binarygraphite]

@roshraw Essentially you can use any lens depending on the type of shot but most commonly you'll find wildlife shooters use telephoto lenses (Canon has a few 70-300 & 75-300 you could examine or their high-end super telephoto line if you have the budget; check out Sigma lenses too like the 150-500mm). If you're on a budget and want to extend the zoom even further, consider getting a tele-converter. You might lose a stop of light but you could potentially double your focal length.

[binarygraphite]

@roshraw As for landscape photography, generally wide angle lenses are used. I'm guessing you have the 18-55mm? That's not bad overall, but you could think about getting a fisheye lens (Canon has a15mm) or something in the ultra-wide range like the 10-22mm. Another you can consider is getting a good 50mm prime lens; many provide excellent image quality.

[binarygraphite]

@roshraw But like I say, you could essentially use almost any lens; I have several that cover a range of focal lengths from very wide to super-telephoto, which allows more flexibility when composing shots.

[roshraw]

@binarygraphite do you change lens on location of the shoot or you fit many camera's with different lenses for a shoot

[binarygraphite]

@roshraw Personally I do both because I usually have my E-3 and E-P2 with me. So the E-3 might have a tele-lens and the E-P2 a wide angle one. But in some cases I will change to a different lens if I believe I could take a better shot with another one for a particular scene.

[roshraw]

@binarygraphite thanks man. i was trying to take pictures in low light today , i did get a few images but as soon as the subject moved image shakes like crazy.

[binarygraphite]

@roshraw Another useful tool for wildlife shooting is a monopod; could help stabilize your shots and they're quite portable and light to carry around. If it's darker, did you bump up your ISO to say 800 or 1,600? Also open the aperture wide; you might loose some depth of field but it can help increase shutter speed.

[roshraw]

@binarygraphite it was a tricky place there was light shafts running through it. so each time i bump up the iso the light gets over (i dont know what it is called)

[binarygraphite]

@roshraw Ahh, you were probably getting some blown highlights / overexposure. In really tricky situations like that, perhaps consider HDRI and take about 5 - 7 exposures starting from heavily underexposed to highly overexposed, and then combine the shots in Photoshop for example.

[pramodmeee]

Can you explain How the depth of field change with the aperture? Thanks.

[Greeeetings]

Magyar vagy?

[binarygraphite]

@Greeeetings Igen. Cegleden szulettem de Canada-ba noltem fel.

[kapilasudesh]

Mr Imre, I'm kapila. could i know the difference between 58mm lens and 52mm? is there any advantage buying 62 than 58? do this diameters affect to the width of the image? thank you. soon i'm sending you my pictures. here in Japan these days rainy, cloudy. by next ween i can see red leaves and will shoot. thank you.

[binarygraphite]

@kapilasudesh Hi Kapila! Often, larger thread diameters indicate higher quality lenses, but in my opinion, it's important to examine other details of the lens as well (max. aperture, lens element types such as ED, etc.). The width of the image, or really the angle of view you get with a particular lens, is affected by the focal length and not by the thread size or even the size of the objective or front lens element. I look forward to seeing your photos!

[kapilasudesh]

@kapilasudesh Thank you very much Mr. Imre. also could you please roughly tell me what lens you reccomend the best according to your practical knowledge. cause you are busy i don't expect very detail reply. how you feel only enough. here they're

(1) Nikon : AF Zoom-Nikkor 70-300mm f/4-5.6G

(2) Tamron : AF70-300mm F/4-5.6 Di LD MACRO

(3) Sigma : 70-300mm F4-5.6 DG MACRO

Also, please tell whether you care about variable reduction capabilities.

Thank you so much teacher.

[binarygraphite]

@kapilasudesh Hi Kapila, sorry for the late reply! Overall, those three lenses have essentially the same specifications. Perhaps there is a difference in the quality, depending on the brand, but as I'm not very familiar with these specifically, it's difficult for me to say. But with what I do know, Nikon certainly produces excellent lenses and I've heard other photographers speak highly of Sigma; I don't know much about Tamron, so I can't say much there.

[binarygraphite]

@kapilasudesh I looked up the Nikon lens, but I can't find much in regard to it's macro capabilities. According to Sigma's website, the lens is capable of 1:2 magnification; this may be a good thing if you would like to shoot macro photographs.

[binarygraphite]

@kapilasudesh And as for VR (which is actually vibration reduction), it's basically image stabilization that is built into the lens. This can be helpful if you prefer hand holding your camera to reduce blurring that may occur at slower shutter speeds. On some cameras, image stabilization is built in-camera; in other words the sensor is shifted. In VR lenses, a lens element is shifted instead. Hope that helps and good luck in choosing your lens!

[ZXAnimal]

how does 4 thirds work? surely 3 thirds make a whole...

i admit im not the brightest person ever but that bit threw me a little!

[binarygraphite]

@ZXAnimal Four Thirds represents the aspect ratio of the image such cameras take (unlike the 3:2 for 35mm film and APS type sensors); in other words 4:3. Four Thirds can also be shown as 1:1.33, but that I suppose that was avoided as it doesn't look/sound as good for marketing purposes.

[FirebrandNIRE]

superb!

[binarygraphite]

@FirebrandNIRE Thank you!

[zerosumgamez]

Very clear and concise explainations, loved it. Thank you so much. esply crop factors.

[binarygraphite]

@zerosumgamez Very glad you found it useful! Thanks for the comments!

[SKTPSY]

Thank you! Thank you! Thank you!

[agun17]

I wonder If he can juggle lenses.

Hmmmm.....

[diydummy]

Thank you for making this very helpful video. I really appreciate the clear explanation and illustrations.

Looking forward to checking out your other videos.

[geru2000]

I've been using a DSLR for less than 2 years. Everything I've learned has been through reading and experimentation.

I've learned something from each of your videos, This one was extremely informative.

Please keep up the great work. It's very much appreciated.

[binarygraphite]

Thank you geru2000! It's great to hear you're finding them useful.