File :-(, x, )
anonymous
hnewfag here

i have been looking for a macro lens for a while, and was pretty set on the tamrom 90mm, but then i found this.

Sigma APO 150mm f/2.8 Macro EX DG HSM Lens D80 30D-0475

i dont quite understand what this means though..does the 150mm mean it is a 150mm prime lens with no versatility? is there no zoom function at all on this lens? and if not why isnt it labeled such as on other lenses

thanyou
>> I||ICIT !!mknjFN/v/49
>>118670
exactly.

so is the tamron 90mm

good luck ever finding a proper macro (1:1) zoom.

some zooms say they do "macro" but theyre more like "close-up"

you cant really go wrong with a modern day macro lens. they are renowned for being nigh on tack sharp at all apertures, and amazing when stopped down a bit...
>> anonymous
i dont really understand what you just said.

does this mean i am always stuck at 150mm? i have used a 1:1 nikkor lens before which allowed a zoom function.

also, why is a larger aperture more desired? eg 1.4 or something

teach me guise, teach me
>> ken-t
although i dont know much about lenses...
I have a nikkor macro lens and it is prime... but you can only focus on an object that is a certain distance away if you want a certain macro ratio (eg 1:1)... the focus ring dial shows not only the distance away but also the macro ratio..
so for example.. object focused at 30cm away would be 1:1.. and some thing focussed 40cm away would be 1:2 etc..

I think maybe macro lenses have way too much glass just as a prime lens to even consider making a zoom macro lens would be crazy...
>> Anonymous
>>118679
>good luck ever finding a proper macro (1:1) zoom

The best you'll find is the 70-180 Micro-Nikkor, it's 1:1.3 at 180mm. I don't know of any zoom that comes close.

But, yes, it is true that if you want 1:1 you use a prime. Me, I like more in the range of 5:1 so I use a bellows system.
>> Anonymous
>>118683i have used a 1:1 nikkor lens before which allowed a zoom function.
No you haven't, unless you were using extension tubes and close-up filters. No such lens exists.

Almost all true macro lenses are primes, which means they have no zoom. There is no reason to have a macro zoom lens because when you are photographing something close up you can zoom by moving the camera.

The zoom lenses that say "macro" are almost always not true macro. Most of the time they don't even focus that closely, it's jut a label that lens makers like to stick on there to trick stupid people.
>> I||ICIT !!mknjFN/v/49
>>118683
k;

all of these macro lenses with a focal length of say "105mm" are a lens that is designed as a 105mm lens. it cannot zoom, i think what you are thinking of is zooming as in focussing closer, or foot/camera zooming by moving the camera to or from your subject.

though i have noticed that there is a slight focal length change through the focus range on most lenses. and generally manufacturers state the focal length is correct at infinity focus.
>> thefamilyman !!rTVzm2BgTOa
>>118687
I own said lens.
It *is* the only lens of its type. 1:1.3 is pretty good and far better than any other zoom "macros"
you can easily achieve 1:1 or greater with close up lenses or extension tubes.

It also doubles as a decent telephoto zoom lens!
>> I||ICIT !!mknjFN/v/49
http://www.bythom.com/70180Macrolens.htm
>> Anonymous
>>118719

Yeah, I was pretty sure it was as close as you can get in a zoom, but I'm not overly familiar with camera systems that don't begin with an N or a C. Have you tried it with the 6T close-up filter?
>> Anonymous
Could anyone explain to a complete noob in macro photography what is that 1:1 or 1:3 magnification you speak about? I tried to google but all results I get speak about crop factors and I doubt it has anything to do with that.
>> anonymous
its the size of the object to the censor (or film)

for example, on a 1:1 lens, the bee you photograph will be the same size on the film as in real life...think about it
>> anonymous
do you think this lens would be better then the 90 mm tamron? but then again they're are supposed to be aperture ring problems with the nikon mount :(
>> thefamilyman !!rTVzm2BgTOa
>>118725
I use a Kenko UniPlus 25 extension tube.
>> Anonymous
     File :-(, x)
I just got the Canon 100mm f/2.8 Macro USM from Hong Kong (parents went on a trip, I asked them to bring me back some cheap canon gear), and it's great.

Life size macro, really fast and sharp focusing. Its a pretty chunky lens, its bigger than my 75mm-300mm zoom, but its not too heavy. Havent tried using it on a tripod yet, but I may have to get the tripod adapter, the center of balance is thrown way off with this huge thing stuck on the end of my camera.

Overall I'm very happy with it though, got it at 2/3rds of the local list price, and its great for things other than macro shots, medium portraits, even longer shots. Just waiting on my filter kits to arrive before I start shooting a lot more and posting them here.
>> anonymous
>>118687
I own said lens.
It *is* the only lens of its type. 1:1.3 is pretty good and far better than any other zoom "macros"
you can easily achieve 1:1 or greater with close up lenses or extension tubes.

It also doubles as a decent telephoto zoom lens!

you mean the sigma or the nikkor the other guy mentioned?
>> thefamilyman !!rTVzm2BgTOa
     File :-(, x)
>>118745
the nikkor

Camera-Specific Properties:Equipment MakeNIKON CORPORATIONCamera ModelNIKON D70Camera SoftwareAdobe Photoshop CS2 WindowsMaximum Lens Aperturef/4.4Sensing MethodOne-Chip Color AreaColor Filter Array Pattern822Focal Length (35mm Equiv)82 mmImage-Specific Properties:Image OrientationTop, Left-HandHorizontal Resolution300 dpiVertical Resolution300 dpiImage Created2006:12:20 22:22:19Exposure Time4 secF-Numberf/11.0Exposure ProgramAperture PriorityExposure Bias0 EVMetering ModePatternLight SourceUnknownFlashNo FlashFocal Length55.00 mmCommentCopyright 2006 Patrick BridgmanColor Space InformationsRGBImage Width1024Image Height681RenderingCustomExposure ModeAutoWhite BalanceAutoScene Capture TypeStandardGain ControlNoneContrastNormalSaturationNormalSharpnessNormalSubject Distance RangeUnknown
>> anonymous
what sort of issues would i face if i didnt have an aperture ring?
>> des
>>118749
you can't use G lenses on bodies that can't speak to the lens (MF bodies).
you only have limited aperture control with some early bodies (F4, N90, N65, N6006, N8008, from memory; NOT THE 's' VERSIONS OF N90 or N8008!).
With those bodies you MUST use "P" or "S" modes because they expect you to choose aperture from the aperture ring rather than the command wheel.
>> anonymous
i have a d40x ); (it was all i could afford...will it be right or not?
>> des
>>118756
Your camera will work with any G lens but won't autofocus with lenses that aren't AF-S.
I'm not sure that they've made G lenses that *aren't* AF-S, but I haven't looked in to it.
>> anonymous
i dont mind manually focusing, as i do plan on upgrading to a d80 or d200 in the near future, but just to clarify this lens will work without any aperture issues on my d40x?
>> thefamilyman !!rTVzm2BgTOa
>>118758
almost all G type are AF-S,

>>118749
Aperture rings are only needed for older MF bodies, otherwise you have nothing to worry about as the aperture ring does nothing for any AF lens on an AF body from the early 90's onwards.
>> thefamilyman !!rTVzm2BgTOa
>>118767
any AF (or AF-s) lens nikon has ever made will mount, meter and work fine, except auto focus on non-AF-S lenses.

Said that, you can still mount and operate ANY nikon lens ever made, less metering for pre-AF lenses. But if you plan to get a D200, you CAN meter with the MF lenses.
>> anonymous
thankyou familyman and dez...

i think this is the go