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Forum: Pentax SLR Lens Discussion 2 Days Ago  
Help Choose a 35-70
Posted By butangmucat
Replies: 16
Views: 613
Cosmicar actually had a constant f4 version? I thought they only had the mediocre 3.5-4.5 version.
Forum: Flashes, Lighting, and Studio 3 Days Ago  
Flashgun Selection Question
Posted By butangmucat
Replies: 2
Views: 263
Hello,

So I was recently shrinking and updating my kit of cameras and accessories, and decided to update the flashguns to more modern ones. I picked up a Nikon SB-800, mainly for my FE2, and was immediately attracted by the fact that it is a modern (digital) flash that has full backward compatibility with older equipment, and I am looking for a Pentax equivalent. Basically I have the following questions:

- Is there a flash that has an adjustable head (i.e. bounce flash) that can support both digital and film TTL? I would like the TTL to work on all my three Pentax bodies: LX, PZ-1, and K-S2, and I prefer the flashgun to be no larger than the Nikon SB-800.
- Before I manage to purchase such a flash, can I use my Nikon SB-800 on my Pentax bodies if I put it in auto (thyristor) or manual modes? Do I need to use a Wein SafeSync to mask out the Nikon-specific contacts to avoid confusing either the camera or the flash?

Sincerely
Forum: Pentax SLR Lens Discussion 3 Days Ago  
Help Choose a 35-70
Posted By butangmucat
Replies: 16
Views: 613
I had this one as the kit lens on my PZ-1 before, but later sold it when I acquired the Tamron SP AF 24-135mm F3.5-5.6 AD Aspherical IF Macro, because I figured out that I don't really use Pentax AF bodies as my primary film camera (rather, I use LX as my primary film and mixes between my K-S2 and Sony a7 when it comes to digital), and the F 35-70 became a bit surplus.

I originally kept the M 35-70 over the F because while the F is solidly built and is very sharp by the standards of its day, the ergonomics is still pretty poor, and it is easier to focus precisely on the LX with the M (not only because the M has a more damped and larger focus ring, but also because the M is faster and makes my viewfinder brighter).

Will consider the F again if I ever decided to give my PZ-1 more love. Do you have a hood recommendation?

I also have the F 24-50 which I bought some time ago for my K-S2 after my HD DA 20-40 was deemed faulty. I like how the lens performs, especially stopped down, but it is very large, especially when compared to the similarly-speced Minolta AF 24-50/4.
Forum: Pentax SLR Lens Discussion 4 Days Ago  
Help Choose a 35-70
Posted By butangmucat
Replies: 16
Views: 613
After reading the reviews here and on other sites carefully, it seems that the Tamron 17A is not too far away from the M 35-70/3.5, but the Tamron is the shortest of the three (and the A 35-70 being the longest), and is also more reasonably priced here in China. I ended up picking a copy from a Chinese dealer.

As for the M 40-80, I still feel that it is not wide enough and also on the heavy side.

Thanks for the input.

---------- Post added 06-16-19 at 01:19 AM ----------



Also tried to hunt down this one, but can't find a good copy from a reputable seller locally.
Forum: Pentax SLR Lens Discussion 5 Days Ago  
Help Choose a 35-70
Posted By butangmucat
Replies: 16
Views: 613
Thanks, but I assume that shipping a lens from UK to China would make it not any cheaper than buying directly off Chinese used camera dealers, and it can take quite some time...

But if you happen to be in China now, than I would be more thankful.
Forum: Pentax SLR Lens Discussion 5 Days Ago  
Help Choose a 35-70
Posted By butangmucat
Replies: 16
Views: 613
My only worry is that the 40-80 might not be wide enough and I would always need to carry my FA31 as a backup, which might be impractical sometimes.

I tend to treat 35mm as a “safety net:” I won’t use it often, but I want my zoom to have that handy when I do need it (which happens from more often than I expect, unfortunately).

Besides that the 40-80 does look tempting: a similar design to the 35-70 but lighter and focuses closer (when using macro mode). Haven’t looked into the price though and I doubt that it is widely available in China.

---------- Post added 06-15-19 at 08:25 AM ----------

Unfortunately while the 40-80 is easily available, the price is getting close to a M 35-70 in similar condition here in China, making it less attractive price wise.

---------- Post added 06-15-19 at 08:45 AM ----------

Another problem is that sometimes sellers would keep the listing for items that are actually out of stock here on Taobao (the Chinese fleebay) so I would like to build a list of lenses that I could fall back to if my top choice is not available somehow.
Forum: Pentax SLR Lens Discussion 5 Days Ago  
Help Choose a 35-70
Posted By butangmucat
Replies: 16
Views: 613
Currently my most-used Pentax camera is the LX, and my experience is that K and M lenses are usually better built and in turn offers a better experience (compared to both A and FA lenses, including my FA43 and FA31).

I had the 44A but passed onto it, mainly because of its size. It’s made mostly of plastic so is pretty light, but it is still pretty big IIRC.

---------- Post added 06-15-19 at 07:08 AM ----------



Mostly because of the MF experience. I had one before but passed onto it because I found myself using my LX more than my AF bodies. And MF with that lens is far from pleasant. Currently the only AF lenses I routinely use on my LX are my FA Limiteds, but even them are still lacking from genuine MF lenses.

---------- Post added 06-15-19 at 07:10 AM ----------

Oh and I actually have a MX screen in my LX, so a lens that is too slow impends the use of the split prism.

---------- Post added 06-15-19 at 07:11 AM ----------

I am also a bit curious about the mixed reviews here on the A 35-70/4. Is that related to some QC problems?

---------- Post added 06-15-19 at 07:16 AM ----------

P.S. adaptor wise,I have Adaptall mounts for Pentax K, KA, and Ricoh R-K mounts, plus M42 and Nikon F.

The ideal 35-70 I was looking for is something similar to the Nikon Series E 36-72/3.5 I own: small and light, and has decent performance, and is fast enough. I personally lean towards the A 35-70 but is a bit wary because of the mixed reviews in the forum review section.

I have tried to hunt down a Ricoh XR 35-70/3.5, but was out of luck here in China.
Forum: Pentax SLR Lens Discussion 5 Days Ago  
Help Choose a 35-70
Posted By butangmucat
Replies: 16
Views: 613
Hello,

So today was a bad day for me. I was on a photo walk and I tripped on my self, and broke my SMC-M 35-70/2.8-3.5. The front element suffered slight coating damage, but the filter ring was badly dented. I have had a quick talk with my camera repair guy and his quote for fixing the filter ring and check the alignment of the lens elements costs around 40 bucks equivalent in CNY (I bought the lens for slightly less than 60 bucks from KEH originally). Therefore I figured that it would be better if I send it off to my local used camera dealer along with several other lenses that I don't really use, and use the money I got from that to get a replacement.

I have searched around, and have basically had three options: another M 35-70/2.8-3.5, a A 35-70/4, or a Tamron Adaptall-2 17A, after searching the market for what is available, but I cannot make a decision due to several reasons.

For the M 35-70, I have always had a love-hate relationship: I love the build and performance of the lens, but I hate its bulk, especially after acquiring the similar-sized and only slightly heavier Tamron 65A. The 65A has a range of 35-105mm and a constant f2.8 apterure, making it more versatile than the M 35-70, but the M beats the 65A in optical performance. As a result, I have kept the M but did not use it as much as I usually would. But the M 35-70 is also the least overpriced lens on my list, especially the ones in tip-top condition, which is about the same price as what I would pay in the US. But I still pay more for average copies in China, and I do not need mint copies for a lens that I would use.

The A 35-70/4 is a small and light lens, and I value that. However the price in China is overhyped, matching that of the M 35-70 lens, simply because it's an A lens. And the reviews here seems to be pretty mixed.

I have had the Tamron 17A before, and got rid of it after it became moldy. I like that it is not that heavy and pretty compact, but the price of Tamron is much higher here in China (around 50 bucks to 70 bucks equivalent in CNY), because Tamron Adaptalls are pretty much underpriced in the US (in my opinion).

I would like some suggestion on which one to buy as an replacement, considering the price, features, performance, and overall build and size. I would primarily use these lenses on my LX.

Sincerely
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 04-23-2019, 01:13 AM  
Help Identify Agfa Super Solina
Posted By butangmucat
Replies: 1
Views: 303
So I picked up an Agfa Super Solina from a local camera store today and it seems to be in pretty good condition. It is meterless, but does have a parallex corrected, coupled rangefinder.

However I am not sure which specific lens it has. The lens is marked Color-Apotar 45/2.8 and Google have told me that the 45/3.5 Apotar is a triplet design. I am not sure one can actually make a 2.8 triplet, though.

Any ideas on the lens and its performance?
Forum: Film Processing, Scanning, and Darkroom 04-21-2019, 10:09 PM  
Mid-range Medium Speed Color Film
Posted By butangmucat
Replies: 6
Views: 484
But from my friends who have used them in China, they are about the same league as Fuji C200 and Superia 400.

Films like Superia Premium 400 and ProImage 100 are attractive because they are of high quality and consistent, and can be used for some demanding applications (clearly superior than say the baseline Fuji Superia or Kodak ColorPlus), but are not too expensive and can be used casually without breaking the bank. Unfortunately Superia Premium 400 will break the bank here in the US. ProImage 100 has an attractive pricing, but the speed is not really fast enough.
Forum: Film Processing, Scanning, and Darkroom 04-21-2019, 09:32 PM  
Mid-range Medium Speed Color Film
Posted By butangmucat
Replies: 6
Views: 484
Just wondering if such a film exists nowday:
- Not as expensive as true professional emulsion like Pro 400H or Portra 400, but still strictly quality-controled and carefulled handled
- Rated at around ISO 400

Kodak has the ProImage 100 that sort of fits the role of a "semi-professional" film that is good enough for somewhat demanding usages but still not too expensive. However at ISO 100 its usefulness to me is somewhat limited. I had been using Kodak Portra 400 and 800 almost exclusively even for everyday photography which I consider worthwile using film, but the price is still a bit too high and I am considering to reserve them for more important things.

I also used Fuji Superia X-Tra 400 and Fuji Industrial 400 before, but I feel that their quality (especially the US Superia X-Tra 400s which I have bought from Walmart as stop-gap measures when I run out of Portra while the Industrial is significantly better) are not very stable and predictable. I had a few rolls of Superia Premium 400 before that performs well and is reasonably priced (in China), but they are more expensive than Portra 400 and even Pro 400H here in the US. Lomography 800, when rated between 500-640 is pretty good, but they seem to have some QC issues like scratched negatives which happen more often than others, and their characters also seem to have changed over the years.

I would like some suggestions on what I can look into, or perhaps ways to get films like Superia Premium at a more reasonable price. I understand that the types of film I can choose is pretty limited.
Forum: Pentax Film SLR Discussion 04-14-2019, 05:01 AM  
Things to Check on an LX
Posted By butangmucat
Replies: 2
Views: 448
Hello,

Having received my LX from Advance Camera's warranty job for about 2 weeks now, but I realized that there are still some minor issues that they did not completely fix. For example, the meter does not turn off automatically, and it uses up a set of 357 cells in about two weeks, and there are also minor issues that only occasionally happen with slower shutter speeds. I am planning to send it in one last time before I take it back to China for the summer. It seems that what they do is fixing the problems that I have described. So I would like to do a check myself before sending it in, and fix as much issues as possible before I go home.

Sincerely

Edit: Advance Camera had done fantastic job on the sticky mirror and motor drive issues, but it is just that there are minor issues I have missed that did not got fixed.
Forum: Pentax Camera and Field Accessories 04-05-2019, 03:20 PM  
3D printable grips for LX and 6x7
Posted By butangmucat
Replies: 17
Views: 1,511
Printed with AmazonBasics transluscent PLA. It seems that some black dirt got into the print line, but apart from that it is perfect. Printing vertically also provided holes for the lugs that actually fits better. The color also matchs my Domke strap pretty well.



Forum: Pentax Camera and Field Accessories 04-05-2019, 01:59 PM  
3D printable grips for LX and 6x7
Posted By butangmucat
Replies: 17
Views: 1,511
Well my college has a 3D printing lab and a variety of PLA (and only PLA) filaments to choose from...

Tried one with HatchBox black, on a FlashForge Creator Pro. Was not a huge success because I printed it horizontally, with some supports. Ended up re-drilling some of the holes.





I am printing a second one with AmazonBasics transluscent PLA to match my new Domke camera strap.
Forum: Flashes, Lighting, and Studio 04-04-2019, 08:09 PM  
How do I read the tables and markings on my flashes?
Posted By butangmucat
Replies: 11
Views: 775
I was discussing with some other forum members about flash trigger voltages in Flash Trigger Voltage for Film Cameras - PentaxForums.com

And as a reference:

According to Photo Strobe Trigger Voltages your Vivitar 560D has a trigger voltage of 15V, but it is known that Vivitar may silently change the internal circuits of an flash while using the same model name, so you might have to proceed at your own risk. There are several flash voltage regulators available, but AFAIK only the Wein Safe-Sync Hot Shoe to Hot Shoe with PC 990-560 B&H Photo is capable of dealing with ultra-high voltage flashes that can have trigger voltage in the range of several hundred volts, while cheaper ones like Vello HSA-PVU Hot Shoe Adapter with Safe Voltage HSA-PVU B&H can only handle up to 60V.

A few electronic film cameras may be able to handle high flash voltages, but they are exceptions rather than the rule. Most electronic film cameras (like the PZ-1) and digital ones (like the K-S2) can only handle relatively low voltages, and some of them like Sony have a strict voltage regulation of 6V, which rules out almost all legacy flashes.
Forum: Flashes, Lighting, and Studio 04-04-2019, 07:29 PM  
Flash Trigger Voltage for Film Cameras
Posted By butangmucat
Replies: 8
Views: 615
Out of all my electronic film cameras, the only one that I know to be safe is the Minolta Maxxum 7, which according to Safe flash trigger voltage on Dynax 7? | ePHOTOzine can take up to 400 volts from the PC terminal, but the hotshoe is way less robust than that.

Most of my cameras are able to sync mechanically (LX, SPF, ME Super, and Nikon FE2), but I do have a Nikon EL2 which has a battery-dependent X-sync speed of 1/125s, and an unmarked fallback shutter speed of 1/90s which is automatically used when the battery is dead. However the EL2 was made in the late 70s, still at a time of high voltage flash and it seems to use a Copal Square focal-plane shutter which predates the ones used on the FE2 so it should be safe too. However I don't want to risk to test my Sunpak on the EL2 at this point.
Forum: Pentax Camera and Field Accessories 03-30-2019, 10:50 PM  
Screw for LX Grip
Posted By butangmucat
Replies: 1
Views: 377
Hello,

I am considering 3D printing a grip for my LX. I will be using the design posted in 3D printable grips for LX and 6x7 - PentaxForums.com.

From what I understand, I will need to find my own screw to hold the 3D printed grip. Does anyone happen to know the type of screw needed?

Sincerely
Forum: Flashes, Lighting, and Studio 03-29-2019, 01:13 AM  
Flash Trigger Voltage for Film Cameras
Posted By butangmucat
Replies: 8
Views: 615
I was doing some further research on this topic, and came across this: Powershot Posts



Does this mean that cameras like LX still uses the old style mechanical contacts?
Forum: Flashes, Lighting, and Studio 03-26-2019, 08:49 PM  
Flash Trigger Voltage for Film Cameras
Posted By butangmucat
Replies: 8
Views: 615
I got my figure for 322 from this form.

My question is: are my cameras capable of tolerating such a high voltage on the PC terminal? I asked because I know that some cameras have different limits on the PC terminal and the hot shoe.
Forum: Flashes, Lighting, and Studio 03-26-2019, 07:55 PM  
Flash Trigger Voltage for Film Cameras
Posted By butangmucat
Replies: 8
Views: 615
So my photography professor required a flash, and I picked up flash bracket handle and a Sunpak Auto 322 flash. According to my research, this flash seem to have trigger voltage in the 200V range. I plan to use this flash on all my cameras (Pentax K-S2, PZ-1, LX, ME Super, and SPF; Nikon FE2 and EL2; and Sony/Minolta A7 both film and digital) so I have purchased a Wein SafeSync voltage regulator.

The Sunpak Auto 322 interests me especially because it has a PC cord and with the bracket, I can mount it on my LX even when using the FC-1 finder which lacks a hot shoe. However I have read that high trigger voltage can also damage some film cameras, and I would like to know if it is safe to use the flash without using the SafeSync, especially on my collection of older film cameras.

I am not sure which section to post this, but since this is mainly about flash on my Pentax I decided to post it here anyways. Please move it if it is considered off-topic.

Sincerely
Forum: Pentax Film SLR Discussion 03-17-2019, 04:46 PM  
AF-C on the PZ-1
Posted By butangmucat
Replies: 6
Views: 521
So IIRC, the best thing I can do is to try to take as many shots as I can and select the ones that are the sharpest afterwards?

Sincerely
Forum: Pentax Film SLR Discussion 03-17-2019, 04:32 PM  
AF-C on the PZ-1
Posted By butangmucat
Replies: 6
Views: 521
So the camera can be continously tracking the target, but does not indicate a focus lock since it is moving towards me?

Sincerely
Forum: Pentax Film SLR Discussion 03-17-2019, 04:09 PM  
AF-C on the PZ-1
Posted By butangmucat
Replies: 6
Views: 521
So I was photographing a train pulling into the station with my PZ-1 today, and I put it on AF-C. When the train is moving towards me, it looked in focus in the focusing screen, but the camera is constantly making minute adjustments, as judged by buzzing sound made by the lens. I do not remember hearing an AF beep or seeing the focus confirm lamp light, but shutter was released. Does this mean the camera failed to lock on to a target or it is normal for tracking moving subject? It was slightly backlit and the lense used was Sigma UC 28-70 f2.8-4.

Sincerely
Forum: Pentax SLR Lens Discussion 02-25-2019, 12:34 AM  
Pentax-F 50 f1.4 — auto aperture not working on MZ-S
Posted By butangmucat
Replies: 18
Views: 729
I think my second-hand FA31 had a similar issue before... It was fixed by a craftsman back in China by some simple disassembly and cleaning up the insides so that the A-pin can have a stable contact.
Forum: Pentax SLR Lens Discussion 02-24-2019, 12:04 AM  
SMC F 28-80 and FA 80-320?
Posted By butangmucat
Replies: 8
Views: 430
Yeah... But I intend to use it on a PZ-1 which is full frame...

通过我的 moto x4 上的 Tapatalk发言
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