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Minolta AF Code #3915.

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Anton4350 View Drop Down
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Post Options Post Options   Quote Anton4350 Quote  Post ReplyReply Direct Link To This Post Topic: Minolta AF Code #3915.
    Posted: 12 June 2018 at 02:53
I'm looking at a Promaster Spectrum 7 AF28-200mm F3.8-5.6 Autofocus Zoom
I don't see this in the database. Perhaps it is another alias.

I claims to be a Minolta AF.
The box for this lens states that it is for the Minolta AF Code #3915.
I don't know what that means.
I can't get a photo of the rear without the lens cap.

Can anyone advise?

TIA.
 



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QuietOC View Drop Down
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Post Options Post Options   Quote QuietOC Quote  Post ReplyReply Direct Link To This Post Posted: 12 June 2018 at 03:16
Pro Master rebrands other lenses. It sounds like it is a rebranded Tamron of which there are several versions in the database here.
A68 30M 35 50 60M 16-50 16-80 18-55 18-70 18-135 55-200 55-300
A6000 LA-EA1 6.5 16 20 30 50 60 16-50 18-55 55-210
600si: 20 24 28 50 100M 135 24-85 24-105 28-105 35-70 35-105 70-210 75-300 100-200
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stiuskr View Drop Down
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Post Options Post Options   Quote stiuskr Quote  Post ReplyReply Direct Link To This Post Posted: 12 June 2018 at 03:25
Could also be a Vivitar

http://www.dyxum.com/lenses/Vivitar-28-200mm-F3.5-5.6_lens469.html

There's 2 versions of this lens that I can find, one with better glass that sounds like it could be a Tamron knock off.

http://allphotolenses.com/lenses/brands/c_114.html
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a99M2 a99 a77 a700 KM7D|Min24/2.8 Min35/2 So50/1.4 So50/2.8 Min85/1.4G Tam90/2.8 Tam180/3.5|Tam17-50 CZ24-70G2 KM28-75D So70-200G1 So70-300G So70-400G1| SonyF60 AD200R2
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addy landzaat View Drop Down
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 12 June 2018 at 07:15
Can you share a picture? In our lensdatabase there are several 28-200 lenses.

From the pictures on the site stiuskr linked to, it seems it is either one of these:
Promaster spectrum7 28-200mm f/ 3.5-5.6 UMCS seems the same as the Vivitar 28-200 (which could be the same as this Sigma lens)


Promaster AF 28-200 mm f/ 3.8-5.6 LD Aspherical (IF) Lens most likely is the same as the Tamron 28-200mm 3.8-5.6 LD Asphereical IF Super.

The name you give seem to be a combination of these two - but then, how reliable is allphotolenses?

Anyway, welcome to Dyxum Anton
Why not follow me on Instagram? @Addy_101
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Miranda F View Drop Down
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 12 June 2018 at 09:43
I have tried several 28-200mm film-era lenses and none of them were anywhere near satisfactory for digital. Frankly, they are disappointing on film. Sure I haven't tried every one but my experience is they're useful only as paperweights, and not for any actual photography. So If you're thinking about buying one, my advice is - don't.
Miranda F & Sensorex, Sony A58, 5d, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras . . .
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Post Options Post Options   Quote neilt3 Quote  Post ReplyReply Direct Link To This Post Posted: 12 June 2018 at 10:38
Originally posted by Anton4350 Anton4350 wrote:



I claims to be a Minolta AF.
The box for this lens states that it is for the "Minolta AF Code #3915".
I don't know what that means.






"Minolta AF" as opposed to "Minolta SR" means that it is for the Minolta Auto-focus cameras ( we call it "A" mount ) rather than the earlier Minolta "SR" mount manual focus cameras ( A.K.A "MD" mount) , which wont fit without an adapter .

"Minolta AF" rather than "Minolta Dynax/Maxxum/alpha" (depending on market) suggests it's from around 1985-88 for the original Minolta 5000/7000/9000AF cameras .

The "Code #3915" is just Promaster's product code for ordering etc .

I had one of these type of lenses years ago , Vivatar IIRC , and as already noted above , it was a piece of junk .
Not a sharp image was to be had regardles of handheld ,tripod mounted , shutter speed , aperture etc .

If it's for sale at less than $20 you might want to give it a go , but even at that price , I wouldn't waste my money .

see my photostream on flickr;
http://www.flickr.com/photos/neilt3/
C & C welcome.
 



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Bob J View Drop Down
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Post Options Post Options   Quote Bob J Quote  Post ReplyReply Direct Link To This Post Posted: 12 June 2018 at 10:48
I had one of these badged as a Quantaray; it was better than expected, but my expectations were quite low... There was a Vivitar and a Sigma I think... they may have been similar under the skin.
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mirthseeker View Drop Down
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Post Options Post Options   Quote mirthseeker Quote  Post ReplyReply Direct Link To This Post Posted: 12 June 2018 at 11:38
Promaster rebranded the Tokina AF 24-200 3.5-5.6 ATX, I believe, which I have (the Tokina), and it gets quite decent reviews as a super-zoom. But probably a completely different lens to this one.
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Anton4350 View Drop Down
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Post Options Post Options   Quote Anton4350 Quote  Post ReplyReply Direct Link To This Post Posted: 13 June 2018 at 14:44
I see such things in the database with a positive usually as it being a OK walkabout lens if you were only permitted one lens on a trip.

I have a Minolta 75-300 which is OK, but I rarely use the full zoom and even when in macro mode won't focus close enough. I realize any/all zooms are a compromise. I suppose I'm just figuring what compromises are available.

/a
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Miranda F View Drop Down
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 14 June 2018 at 09:55
Originally posted by Anton4350 Anton4350 wrote:

I see such things in the database with a positive usually as it being a OK walkabout lens if you were only permitted one lens on a trip.

I have a Minolta 75-300 which is OK, but I rarely use the full zoom and even when in macro mode won't focus close enough. I realize any/all zooms are a compromise. I suppose I'm just figuring what compromises are available.

/a

I think you would find the Minolta 70-210mm f4.5-5.6 more use than the 75-300, as the MFD is a lot less and hand-held flower pics are possible. It's also sharper near MFD. If you're on APS-C the Sony 55-210 is even better - very sharp and close MFD. If you're on FF, there are several lenses in the 24/28-105mm range which are worth using.
Miranda F & Sensorex, Sony A58, 5d, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras . . .
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Anton4350 View Drop Down
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Post Options Post Options   Quote Anton4350 Quote  Post ReplyReply Direct Link To This Post Posted: 14 June 2018 at 17:51
The 75-300 was my father's; I inherited it when he died.
A good lens, but the MFD sucks, even in macro mode.

I take it you mean a Sony 55-200 and not 210.
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neilt3 View Drop Down
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Post Options Post Options   Quote neilt3 Quote  Post ReplyReply Direct Link To This Post Posted: 14 June 2018 at 20:12
Originally posted by Anton4350 Anton4350 wrote:

The 75-300 was my father's; I inherited it when he died.
A good lens, but the MFD sucks, even in macro mode.

I take it you mean a Sony 55-200 and not 210.


If it's only the MFD that's the issue , have you consided an extension tube ?
One like this also maintains autofocus ; ebay A/F extension tube set , using just the shortest section might be all you need . Using more sections might lose too much light and with the shallower DOF can result in loss of A/F .
But just to get it to focus that bit closer , they work a treat .

Extension tubes without the A/F drive linkage always come up cheap as well .
If you get a set , make sure you get one with 8 contacts , so they are compatible with SAM and SSM lenses . Older versions only have 5 contacts .

I've used them with telephoto lenses to get closer many times .

Regarding the Sony 55-200mm lens , either the SAM version or earlier screwdriven version , have good image quality too .
But remember it is only for APSC (crop) sensors and not for the full frame DSLR's or film cameras .

As you don't say what your camera is , it's just something to remember .
see my photostream on flickr;
http://www.flickr.com/photos/neilt3/
C & C welcome.
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Miranda F View Drop Down
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Post Options Post Options   Quote Miranda F Quote  Post ReplyReply Direct Link To This Post Posted: 15 June 2018 at 15:18
Extension tubes behave a bit oddly with tele zooms. They have more effect at shorter FL, so they tend to give you a near-constant magnification with the zoom and focussing controls reversing. Hard to describe but worth playing with!

In general, extension tubes are effective with short FL lenses and supplementary lenses/filters are effective with long FL lenses, and not vice versa. Plus some lenses behave better with tubes than others. Generally, all-moving primes lens designs work best and multi-moving zooms do worst. Both the old tamron 90mm f2.5 macro and the Sony dt 85mm f2.8 work well with extension tubes.
Miranda F & Sensorex, Sony A58, 5d, Dynax 4, 5, 60, 500si/600si/700si/800si, various Sony & Minolta lenses, several Tamrons, lots of MF primes and *far* too many old film cameras . . .
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Anton4350 View Drop Down
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Post Options Post Options   Quote Anton4350 Quote  Post ReplyReply Direct Link To This Post Posted: 15 June 2018 at 15:38
I think you are "confusing close" focusing with "close-up" photography.

If I want to do 1:1 close-up macro photography that is one thing.
If I want to use my telephoto zoom indoors, where I need close focusing, that is quite another.

As it happens, my Minolta 75-300 has a 'macro mode' but that doesn't help with indoors close focusing. For example, it is useless in a greenhouse or similar to take close focus pictures of the plants, and still act as a general purpose zoom. Having extension tubes or close-up filters is OK if all I'm doing is a dedicated macro project, more probably with a tripod, table-top and white-box of small object like coins to sell on eBay. In a more 'walkabout' setting, the 'walk though the woods', where I might want the zoom capability and range of the telephoto AND take closer focus pictures of plants and animals -- and the latter won't give me time to switch tubes and filters and might need autofocus tracking, well a closer focus is useful.

BTDT and I'm unhappy with the 1500cm closest focus.

And no, I very much do not want to be switching lenses in the woods!
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