Discussion Forum for various Lenses of different major labels in a shared environment at Photography In Malaysia

1. From : New To Photography (imhungry72@hotmail.com)
Url : http://
Date : 04:24 PM Monday 31 October, 2005

I just bought a Nikon D-50. I am a student and would like to save a few dollars, someone had suggested purchasing Sigma lenses. Are they comparable to the Nikkor lenses? Are they even worth looking further into? If there are better economical choices, I would appreciate any guidance. Thank you.

2. From : New To Photography (imhungry72@hotmail.com)
Url : http://
Date : 04:21 PM Monday 31 October, 2005

I just bought a Nikon D-50. I am a student and would like to save a few dollars, someone had suggested purchasing Sigma lenses. Are they comparable to the Nikkor lenses? Are they even worth looking further into? If there are better economical choices, I would appreciate any guidance. Thank you.

3. From : Luigi D. Sandon (cp@sandon.it)
Url : http://portfolio.sandon.it
Date : 01:50 AM Friday 01 April, 2005

Dyan: the A-1 is a manual focus camera, regardless of any adapter and any lens :) If you could find and adapter for the lenses you own - it depends on the actual mount - you will end up to use your A-1 in the most uncomfortable way, and without being able to exploit its excellent features. Being able to use only stop-down means very slow operations and difficult focusing/composition.
IMHO, the wrong way to see if photography is entertaining.

4. From : 01af (olaf.ulrich@onlinehome.de)
Url : http://
Date : 12:49 AM Tuesday 16 December, 2003

Karen wrote:
: To an earlier question from Ralph concerning
: using a Rokinon MC lens with an X700 Minolta:
: Ralph asked if this is a good match. You
: answered, "No, it's not." Would you elaborate,
: please.

Mechanically, it most likely is a good, or at least working, match. However, I am afraid the Rokinon-brand lens offers inferior optical performance. I would strongly recommend to buy a genuine Minolta-brand zoom lens, e. g. the MC Zoom Rokkor 80-200 mm 1:4.5, the MD Zoom Rokkor 75-200 mm 1:4.5, or the MD Zoom 70-210 mm 1:4. Today, those lenses are available in the used market in abundance, for a song. If you are after a still cheaper alternative then I'd recommend the RMC Tokina SZ 80-200 mm 1:4 lens; it is almost as good as the the Minolta zooms.

The 'Rokinon' brand name was invented by some anonymous 3rd-party manufacturer with the intention to become easily confused with Minolta's well-reputed 'Rokkor' name---but the quality behind 'Rokinon' is not up to Minolta standards. Rumour says that fakes like 'Rokinon' were one of the reasons for Minolta to eventually drop the Rokkor name in their lenses.

Olaf

5. From : Tom (tjmcl@prodigy.net)
Url : http://
Date : 11:49 PM Friday 18 April, 2003

I have a Vivitar 70-150mm 1: 3:8 close focusing and auto zoom. It is at least twenty years old but still works perfectly... until recently. On a recent trip overseas the shaft with the lenses became loose from the base which connects with my Pentax. This impeded the aperture mechanism resulting in a number of spoiled photographs. Does anyone have a clue as to how the base can be secured (or reattached) to the shaft? My local camera store is not interested in doing this repair. They said it would be cheaper from the current labor cost to buy a used lens. Any ideas? Thank you. Thank you.

6. From : Alf (knowinmyluck@btinternet.com)
Url : http://
Date : 05:19 PM Friday 18 April, 2003

I'm aware that some zoom lenses that have a variable maximum aperture also shift the f-numbers over the whole range as you zoom. For example, a 28-70 f3.5-4.5 lens would give a maximim working f-stop of f3.5 at the 28mm end and f4.5 at the 70mm end. The minimum aperture would shift from say f22 to f32.

Other zoom lenses retain the same working f-number regardless of which focal length in the zoom range you are using. For example, f22 would be f22 regardless of the focal lenght used. In this case how is this achieved? Is it part of the optical design or a mechanical adjustment? I've read that a cam mechanism is used to adjust the diaphram blades as the lens is zoomed but this is disputed elsewhere. Are there any variable maximum aperture zoom lenses which do not shift the other f-number values? Thanks Alf

7. From : Deano (deano@k2k2.fsnet.co.uk)
Url : http://
Date : 07:46 PM Tuesday 15 April, 2003

I presently own nikkor 28mm 2.8, 35mm 2.8 and 50mm 1.8 lenses. I am using them on a second hand EM body which still works a treat and I am very happy with the image quality. I thought I would 'move up'? to an autofocus Nikon body and went for the F80 which seemed wonderful as the salesman explained all the features. I was dismayed to find however that my lenses although attaching to the body could not meter the light coming through into the F80 body. Is there a Nikon body I can use which will meter the light and operate in manual mode utilising my lenses and also perform auto focus functions on the new lenses I intend to purchase? Sorry if this sounds niave. Regards, Deano.

8. From : Allan Cloos (a.cloos@mail.dk)
Url : http://
Date : 10:55 PM Monday 14 April, 2003

Hi all. Does anybody know the lins which was used on the Bell&Howell/Seiki step optical printer, manufactured in the late 1970's. I also think that it was used on the Oxberry's in the same period. I need to know all about that lins, but havent found anything yet. As far I remember it was engraved "90 mm cine Nikkor". It was designed for 1:1 copy for the motion picture industry. Please contact me privatly on a.cloos@mail.dk

9. From : ron weiss (ron1591@hotmail.com)
Url : http://
Date : 11:44 AM Monday 14 April, 2003

I sure hope someone out there can help me. About 50 years ago, when I was a small boy, I was given a Nikko product - I am honestly not even sure what it is - a periscope? A VERY large set of binoculars? It is marked Nikko No. 2182. The Nikko marking dates to 1932. It weighs 23 lbs. This was given to me by the widow of a gentlemen, and I am assuming he brought it back from World War II. I will gladly email pictures of this to anyone upon request. I am trying to ascertain exactly what this is and it's value. Would greatly appreciate any help you might give me. Thanks so much.

10. From : Russell Ruggiero (rrugg55041@aol.com)
Url : -
Date : 10:10 AM Sunday 13 April, 2003

Dear LF I pick-up a Nikon 85mm 1.4AI this week. At $400 US, this is a great value. It is a nice piece of glass, and also makes a very good paper weight! It works well when mated to the Nikon 35mm 1.4, which is also another "Super" Nikon optic. These two combined optics cost the same as a Canon 85mm 1.2L or Contax 85mm 1.4 or Leica 90mm 2.0, which are also very fine offerings. It a nutshell, the Nikon 85mm 1.4 is a great product. Thank you Russ

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